10.1/10.2 area of polygons quiz

What is the area of a regular octagon with apothem 6 meters and side length 5 meters?

• 15 m²

• 240 m²

• 120 m²

• 480 m²

What is the area of a hexagon whose perimeter is 24 feet?

• 41.6 ft²

• 83.1 ft²

• 124.7 ft²

• 166.3 ft²

What is the area of a regular decagon with radius 7?

• 287.28

• 143.64

• 71.82

• 173.77

What is the measure of a central angle of a nonagon?

• 80^o

• 20^o

• 40^o

• 45^o

What measurement makes a circle with an area of  $64x^2\pi$  

• r = 8

• d = 8x

• r = 8x

• d = 32

What is the perimeter of a circle with area  $289\pi$  

•  $68\pi$  

•  $17\pi$  

•  $34\pi$  

•  $25\pi$  

A kite has an area of  $3x^3y^3$  and the length of one diagonal is equal to  $2x^2y$  . What is the length of the second diagonal?

•  $4xy^2$  

•  $\frac{3}{2}xy^2$  

•  $3xy^2$  

•  $\frac{3}{4}xy^2$  

The perimeter of a rhombus is 40 centimeters. The length of one diagonal is 12 centimeters. Find the area of the rhombus.

• 100 cm²

• 121 cm²

• 48 cm²

• 96 cm²

Find the area of a rhombus if the length of one diagonal is 12 in and the length of the other diagonal is 18 in.

• 108 in²

• 216 in²

• 54 in²

• 432 in²

What is the area of the kite? 

• 105 cm²

• 52.5 cm²

• 210 cm²

• 102 cm²