### Home > CC2 > Chapter Ch1 > Lesson 1.2.7 > Problem 1-129

1-129.

ABCD is a parallelogram. Find the area and perimeter of each figure below.

a.

The formula to find the area of a parallelogram is (base)(height).

In a parallelogram, opposite sides will have equal length.

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b.

The formula to find the area of a triangle is

Since this is a right triangle, you can use one of the legs for the height and the other for the base.

Find the perimeter by finding the sum of the given side lengths.