Question

Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total distance that she ran?

Use the formula d = rt, where d represents the distance, r represents the rate, and t represents the time.

4 km

6 km

8 km

16 km

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2. Dan’s new appliance arrived in a cardboard box in the shape of cube. What is the surface area of the cardboard box?

Use the formula , where SA is the surface area of the cube and s is the length of each side.

18 

36 

54 

324 

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3. What is the surface area of a cube that has a side length of 2.2 meters?

Use the formula , where SA is the surface area of the cube and s is the length of each side.

13.2 

26.4 

29.04 

174.24 

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4. Ivan’s shower floor is rectangular with the dimensions shown. He needs to put new sealant around all four edges of the shower floor. What is the perimeter of the shower floor? 

 

Use the formula for the perimeter of a rectangle, , where P is the perimeter, l  is the length, and w is the width.

92 in.

184 in.

368 in.

1,920 in.

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5. What is the base of a triangle that has a height of 6 centimeters and an area of 18 centimeters?

Use the formula , where A represents the area of the triangle, h represents the height, and b represents the length of the base.

3 

6 

Answer 1

1. d=rt; d=8*2=16 km, answer 4

2. SA=6s^2=6*3^2=6*9=54 sq ft, answer 3

3. 6*2.2^2=6*4.84=29.04 sq m, answer 3

4. P=2l+2w=120+64=184 in, answer 2

5. h=2A/b=2*18/6=6 cm, answer 4