Area and Missing Dimensions - Quarilaterals and Triangles

An envelope from the post office is 3 inches wide with a total area of 30 square inches. What is the height of the envelope?

• 12 in

• 14 in

• 10 in

• 8 in

Rachel was cutting out some fabric for a friend. She cut a piece that was 5 centimeters wide and had an area of 20 cm2. How long was the piece?

• 6 cm

• 7 cm

• 5 cm

• 4 cm

A lawn had an area of 35 square feet. If it was 7 feet in width, how long was it?

• 10 ft

• 5 ft

• 6 ft

• 8 ft

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

 $15=5\times h$ 

Find the height of the quadrilateral.

• 3

• 4

• 5

• 6

If the area of a shape is 50 square feet and the width is 10 feet, what is the length?

• 40 feet
• 10 feet
• 5 feet
• 15 feet

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

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

Given a rectangle with an Area of 96 sq. ft. Find the width if the height is 8 ft.

• 768 sq. ft.
• 768 ft.
• 12 sq. ft
• 12 ft.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

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