Area Missing Dimensions

Faye was cutting out some fabric for a friend. She cut a piece that was 3 centimeters wide and had an area of 24 cm². How long was the piece?

• 8 cm

• 4 cm

• 10 cm

• 15 cm

Joanna made a blanket that has an area of 100 square inches. The length and width are whole numbers. The width is 4 times greater than the length. What are the length and width?

• l = 25, w = 4

• l = 20, w = 5

• l = 10, w = 10

• l = 24, w = 6

Write the equation to solve for the Area of a Parallelogram. Then use it to find the missing dimension. 

• 6cm

• 7cm

• 4cm

• 5cm

Write the equation to solve for the Area of a Trapezoid. Then use it to find the missing dimension. 

• 4ft

• 5ft

• 6ft

• 7ft

Leia cuts congruent triangular patches with an area of 36 centimeters from a rectangular piece of fabric with a length of 14 centimeters and a width of 18 centimeters. How many triangles can Leia cut from 24 pieces of the fabric?

• 168

• 154

• 160

• 170

What is the "formula" for surface area of a rectangular prism?

• SA = 2lw + 2lh + 2wh

• SA = lw + lh + wh

• SA = length ∙ width

• SA = lw + lh + wh ÷ 2

Find the Surface area of the shape?

• 258 m²

• 268 m²

• 248 m²

• 278 m²

To calculate the amount of carpeting needed for your bedroom, which of the following should you find: 

• Area

• Perimeter

• Surface Area

• Volume

The area of the rectangle is 120 ft². The base is 15 ft. What is the height?

• 8 ft

• 8 ft²

• 1800 ft

• 0.075 ft

Find the area:

• 13 in²

• 20 in²

• 26 in²

• 40 in²