AnswersPre-Algebra BArea of Triangles

Area of Special Quadrilaterals Answers

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Alexa is designing a paper airplane whose final shape, when viewed from the top or bottom, is a trapezoid. A sketch of her plane, viewed from the top, is shown on the left.What are the dimensions of one of the identical triangular pieces of the plane?

Question illustration
A
2 cm base, 3 cm height
B
3 cm base, 3 cm height
C
3 cm base, 4 cm height
D
3 cm base, 6 cm height
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The front face of a laundry basket is in the shape of a trapezoid as shown. What is the area of the front face of the laundry basket?

Question illustration
A
252 square inches
B
264 square inches
C
288 square inches
D
336 square inches
3

Alanna is painting a border along the top of a wall. The border consists of kite-shaped figures as shown. Each kite measures 6 inches across and 12 inches long. The wall is 12 feet across. How many square inches of the wall will be covered with kites?

Question illustration
A
216
B
432
C
864
D
1,728
4

What is the area of the kite?

Question illustration
A
20 square meters
B
36 square meters
C
40 square meters
D
80 square meters
5

A window is in the shape of a kite. Caleb wants to apply a layer of plastic film on the top half of the window so that the glass appears crackled. What are the dimensions of the layer of film he will apply?

Question illustration
A
9 inches in width and 7 inches in height
B
9 inches in width and 14 inches in height
C
18 inches in width and 7 inches in height
D
18 inches in width and 14 inches in height
7

A kite was broken into two triangles. What is the height, h, of one of the triangles?

Question illustration
A
8 ft
B
10 ft
C
16 ft
D
20 ft
8

Two tables, congruent trapezoids, are placed together to make a corner desk, as shown.What is the total area of the surfaces of both tables?

Question illustration
A
8 square feet
B
10 square feet
C
16 square feet
D
20 square feet
9

What is the area of the trapezoid?

Question illustration
A
368 ft2
B
432 ft2
C
480 ft2
D
528 ft2
10

A trapezoid was broken into a rectangle and a triangle. What is the length, b, of the base of the triangle?

Question illustration
A
2 cm
B
4 cm
C
6 cm
D
8 cm

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