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Area and Missing Dimensions - Quarilaterals and Triangles

Total questions: 13

Worksheet time: 26mins

Name
Class
Date
1.

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?

a)

12 in

b)

14 in

c)

10 in

d)

8 in

2.

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?

a)

6 cm

b)

7 cm

c)

5 cm

d)

4 cm

3.

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

a)

10 ft

b)

5 ft

c)

6 ft

d)

8 ft

4.

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?

a)

8 cm

b)

4 cm

c)

10 cm

d)

15 cm

5.


 15=5×h15=5\times h 

Find the height of the quadrilateral.

a)

3

b)

4

c)

5

d)

6

6.
If the area of a shape is 50 square feet and the width is 10 feet, what is the length?
a)
40 feet
b)
10 feet
c)
5 feet
d)
15 feet
7.

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?

a)

l = 25, w = 4

b)

l = 20, w = 5

c)

l = 10, w = 10

d)

l = 24, w = 6

8.
Given a rectangle with an Area of 96 sq. ft. Find the width if the height is 8 ft.
a)
768 sq. ft.
b)
768 ft.
c)
12 sq. ft
d)
12 ft.
9.
Write the equation to solve for the Area of a Parallelogram. Then use it to find the missing dimension. 
a)
6cm
b)
7cm
c)
4cm
d)
5cm
10.
Write the equation to solve for the Area of a Trapezoid. Then use it to find the missing dimension. 
a)
4ft
b)
5ft
c)
6ft
d)
7ft
11.
Write the equation to solve for the Area of a Triangle. Then use it to find the missing dimension. 
a)
3in.
b)
9in.
c)
4in.
d)
5in.
12.
Write the equation to solve for the Area of a Triangle. Then use it to find the missing dimension. 
a)
12yd.
b)
3yd.
c)
9yd
d)
8yd
13.

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?

a)

168

b)

154

c)

160

d)

170