Trapezoids
Parallelograms
Triangles
Other Polygons
Formulas
100

What is the area of a trapezoid with a height of 12 in, one base whose length is 8 in, and the other base is 7 in?

90 in 2


100

What is the formula for the area of a parallelogram

A=BH

100

What is the formula for the area of a triangle

A=1/2(B)(H)

100

How do we find the area of a regular polygon that is NOT a triangle or quadrilateral

Divide it intp triangles, find the area of a triangle, and multiply by the number of sides

100

Can you use the "triangle" method for an irregular polygon?

No

200

Find the Missing Base:

Height: 14 cm

Base 1: 7 cm

Base 2: ?

Area: 84 cm2

Base 2: 5 cm
200

Find the area: 

Base: 19 in

Height: 23 in

437 in2

200

Find the area of a triangle with:

Height: 17 cm

Base: 14 cm

119 cm2

200

Find the area of a hexagon with side lengths of 15 ft and a height of 20 ft

450 ft2

200

List the formulas for the height and base of a triangle.

Height: 2A/B

Base: 2A/H

300

Find the height: 

Area: 28 cm2

Base 1: 3 cm

Base 2: 4 cm


Height: 4 cm

300

Find the base:

Area: 156 m2

Height: 13 m

Base: 12 m

300

Find the base of a triangle with:

Height: 14 ft

Area: 112 ft2

Base: 16 ft

300

Find the area of a regular pentagon whose sides are 9 in and each triangle has a height of 4 in.

90 in2

300

List the formulas for the base and height of a parallelogram

Base: A/H

Height: A/B

400

Find the area of the Trapezoid:

Height: 12.5 m

Base 1: 7.6 m

Base 2: 8.9 m

103.125 m2

400

Find the Base:

Area: 233.044 m2

Height: 14.35 m

Base: 16.24 m

400

What is the height of a triangle with:

Area: 121.72 in2

Base: 13.6 in

Height: 17.9 in

400

Find the area of a regular hexagon with a side length of 7m where each triangle's height is 9m?

189 m2

400

How do I solve for the missing base of a trapezoid?

(2A/H) - B

500
Find 2 possible values for each base:

Area: 150 yd2

Base 1: ?

Base 2: ?

Height: 15

Answers may vary

500

Find the area:

Base: 12.7 m

Height: 15.6 m

198.12 m2

500

Find the area of a triangle with:

Base: 24.92 in

Height: 17.63 in

Area: 219.6698 in2

500

Find the area of a regular octagon with a side length of 9 in and a height of 26 in.

A=468 in2

500

What is the formula for the height of a trapezoid?

2A/(B1+B2)