Finding the Area of Triangles, Trapezoids and Parallelograms

What does area mean?

• the distance around a shape

• half the distance around a shape

• the amount of space outside a shape

• the amount of space inside a shape

What is area always measured in?

• units

• square units

What is the area of a trapezoid when b₁ = 4 in, b₂ = 8 in, and h = 7 in?

• 112 in sq

• 84 in sq

• 42 in sq

• 19 in sq

What is the area of the parallelogram when h = 9 ft and b = 7 ft

• 72 ft sq

• 31.5 ft sq

• 54 ft sq

• 63 ft sq

The formula for finding the area of a triangle is...

• b x h

• b + h

• b x h/2

• l x w

The formula for finding the area of a trapezoid is...

• (b1 + b2) x h/2

• 1/2(b1 + b2) x h

• 1/2h x (b1 + b2)

• All of these are correct

Find the area of the parallelogram.

• 15.6 cm²

• 30.6 cm²

• 13.26 cm²

• 79.56 cm²

Find the area of the parallelogram.

• 14.9 in²

• 9.9 in²

• 23.6 in²

• 20.6 in²

What is the area of this triangle?

• 14 units²

• 24 units²

• 48 units²

• 28 units²

What is the area of this triangle?

• 10 m

• 14 m

• 140 m²

• 70 m²