Math Vocabulary Part 3

1) acute angle

2) obtuse angle

3) right angle

4) straight angle

5) acute triangle

6) obtuse triangle

7) right triangle

8) equilateral triangle

9) isosceles triangle

10) scalene triangle

11) quadrilateral

12) square

13) rectangle

14) endpoint

15) ray

16) line

17) line segment

18) point

19)perpendicular

20) parallel

21) intersecting

22)parallelogram

23) plane

24) two dimensional

25) three dimensional

Definitions

1) an angle that measures less than 90 degrees

2) an angle that measures more than 90 degrees

3) an angle that measure exactly 90 degrees

4) an angle that measures exactly 180 degrees

5) a triangle with three acute angles

6) a triangle with one obtuse angle

7) a triangle with one right angle

8) a triangle with all 3 sides equal

9) a triangle with 2 sides equal

10) a triangle with no sides equal

11) a 4 sided shape

12) a quadrilateral where all sides are equal with 4 right angles

13)a quadrilateral where opposite sides are equal with 4 right angles

14) a point at the end of a line segment or ray

15) a part of a line that has one endpoint and extends forever in the opposite direction

16) a straight pathway that extends forever in both directions- no endpoints

17) a part of a line with two endpoints

18) an exact location in space

19) lines that intersect at one point creating 4 right angles

20) two lines that never intersect

21) two lines that cross each other

22) a quadrilateral with opposite sides equal and opposite angles equal

23) a flat surface that extends forever in all directions

24) a plane figure that has length and width-square, cube, circle

25) a figure that has length, width, and height- cube, prism, cone, sphere

Match the Meaning

1) Two lines that will never cross each other

a) intersectingb) parallelc) perpendiculard) point

2) A triangle with two equal sides is called

a) isoscelesb) equilateralc) scalened) right

3) A line with two end points is a

a)lineb) rayc) line segmentd) point

4) When two lines cross they are called

a) intersectingb) parallelc) pointd) ray

5) A triangle that has 3 acute angles is called

a) obtuseb) rightc) scalened) acute

6) A four sides figure is called a ______

a) polygonb) planec) quadrilaterald) triangle

7) A line that has one endpoint and one arrow on the other end is called

a)lineb) rayc) line segmentd) point

8) A quadrilateral with four equal sides

a) polygonb) planec) parallelogramd) square

9) A quadrilateral with two equal lengths and two equal widths and four right angles is called

a) polygonb) rectanglec) parallelogramd) square

10) A triangle with all equal sides is called a/an

a) isoscelesb) equilateralc) scalened) right

11) An angle with 90 degrees is called a/an

a) right angleb) obtuse anglec) acute angled) straight

12) A triangle with no equal sides is called a/an

a) isoscelesb) equilateralc) scalened) right

13) A line with arrows at both ends is called a/an

a) lineb) rayc) line segmentd) point

14) A triangle that has one right angle is called a/an

a) obtuseb) acutec) scalened) right

15) A pyramid has height, width, and length which means it has

a) 3 dimensionsb) 2 dimensionsc) planed) length

16) An angle with a measurement of less than 90 degree is called a/an

a) right angleb) obtuse anglec) acute angled) straight

17) Two lines that cross at right angles are called

a) intersectingb) parallelc) perpendiculard) point

18) A square has

a) 3 dimensionsb) 2 dimensionsc) planed) height

19) A flat surface that extends forever in all directions is called a/an

a) polygonb) planec) parallelogramd) square

20) An exact location in space is called a/an

a) lineb) rayc) line segmentd) point

Complete the paragraphs.

Angles

Angles are everywhere in our world. Look for angles that form sharp corners or 90 degree angles which are called a/an______. If the angle is less than 90 degrees than it is call a/an ______.

It is easy to remember because it has the word “cute” in it, and little babies, puppies and kittens are often called cute. If the angle is greater than 90 degrees, it is called a/an ______. Obtuse reminds me of the word “obese” which means large. If the two ______that make up an angle are completely straight, the angle is called a ______. All these angles can be found in the various shapes of geometry.

Quadrilaterals

In the world, we have flat, or ______shapes, and ______which have length, height and width. A four sided flat shape is called a/an ______. A ______with its four equal sides is a perfect example. If opposites are equal and there are 4 right angles, the quadrilateral is called a/an ______. If a quadrilateral has two sets of parallel lines, it is called a ______. Quadrilaterals can be confusing!

Triangles

Triangles are three-sided shapes. Just like there are many types of quadrilaterals, there are many types of triangles. Triangles can be classified by angle type and length of sides. If a triangle has three equal sides, it is called a/an ______. If no sides are equal, it is called ______. I see the “n” in the word “scalene” and think “n” for no equal sides. If two sides are equal, then it is called a/an ______. Classifying by angles, a ______has one right angle. A______has three acute angles, and a ______has one obtuse angle. We can find all these types of angles in our environment everyday.

Matching Part 1

______1) rectanglea) a quadrilateral with two sets of parallel sides

______2) quadrilateralb) a quadrilateral with 4 equal sides

______3) parallelogramc) a triangle with one right angle

______4) squared) a 90 degree angle

______5) acute anglee) an angle with a measurement of less than 90 degrees

______6) right anglef) a triangle with one obtuse angle

______7)obtuse angleg) an angle that has a measurement of more than 90 degrees

______8) acute triangleh) a quadrilateral with opposite sides equal and 4 right angles

______9) right trianglei) a triangle with 3 acute angles

_____10) obtuse trianglej) a four sided figure

Matching Part 2

_____11)isosceles trianglea) aline with two end points

_____12) scalene triangleb) length and width

_____13) equilateral trianglec) length, width and height

_____14) pointd) a line with one end point and one arrow

_____15) linee) a triangle with no equal sides

______16) line segmentf) a specific location in space

_____17) rayg) a line with arrows at both ends

_____18) planeh) a triangle with 2 equal sides

_____19) two dimensionali) a flat surface that extends forever

_____20) three dimensionalj) a triangle that has all equal sides

Apply the meaning

Label the shape with the best and most specific description

Word Bank: quadrilateral, square, parallelogram, rectangle

1) ______2) ______

3) ______4) ______

Label the angle.

Word Bank- right angle, obtuse angle, acute angle, straight angle

5) ______6)______

7) ______8) ______

Label the triangle Word Bank: isosceles triangle, scalene triangle, equilateral triangle, right triangle, acute triangle, obtuse triangle, line, ray, line segment

9)______10)______

11) ______12)______

13)______14)______

15) ______16) ______-17)______