1) Which expression represents the area of a rectangle with sides measuring 2x2y4z units and 5xy4z3 units?
2) Find the area of triangle RST.
3) If XY = 5 feet and XZ = 13 feet, what is the area of XYZ?
4) What is the area of the unshaded part of the rectangle below?
5) A circle with a diameter of 10 centimeters is to be cut out from a square piece of paper that measures 10 centimeters on each side, as shown below.
Which is closest to the amount of paper that will be left over after the circle is cut out?
6) The total area of trapezoid FGHJ is 52 square inches.What is the approximate length of ?
7) The lengths of the bases of an isosceles trapezoid are shown below.
If the perimeter of this trapezoid is 60 units, what is its area?
8) Find the expression that represents the area of the regular hexagon shown below?
[Area = (apothem)(perimeter)]
9) A trainingbicycle wheel travels about 144 inches in 6 full rotations. What is the radius of the wheel to the nearest ½ inch?
10) Find the area of the area inside the concentric circles if the radius of one is 6 cm and the other is 9 cm.
11) For the figure below, what is the perimeter of the outermost figure? Round your answer to the nearest tenth of a centimeter.
12)a. What happens to the perimeter of a figure if both dimensions are tripled?
b. What happens to the area?
c. What happens to the area if only one of the dimensions is tripled?
13) The area of a triangle is 216 sq. in . If the dimensions of a new triangle are decreased by 3 times, what is the area of the triangle?
14)In prob. #21,if the height of the original triangle is 18, what are the dimensions of the smaller triangle?
15) A rectangle has a perimeter of 36 in. If the area is tripled and its height remains the same, what happens to the width?