The area of a parallelogram can be thought of as twice the area of a
triangle. Use this idea to complete this proof of the rule for the area of a parallelogram.
Area = twice triangle area
= 2 x _________
=___________
b = base
h = height
The area of a triangle:
At = 1 / 2 b ∙ h
The area of a parallelogram:
Ap = 2 ∙ At = 2 ∙ 1 / 2 b h
Ap = b ∙ h
Answer:
= 2 x 1 / 2 b h
______________
= b h
______