Area of Triangles and Trapezoids

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Area of Trapezoids

Objective: find the area of trapezoids

Math Response

The area of this triangle is ____ ft².

Type answer here

Correct Answer: 585

Deg^°

Rad

Trapezoid

A quadrilateral with only one pair of parallel sides.

​(height)

AREA of a Trapezoid

Step 1: Split one of the legs into two equal parts and cut a triangular portion of the trapezoid as shown.

Step 2: Attach it at the bottom so it forms a big triangle.

This is a TRIANGLE we can use that formula.

EXAMPLE

​Find the area.

​Area of a Triangle

FORMULA for the area of a Trapezoid

EXAMPLE

​Find the area.

Math Response

The area of the trapezoid is ___ cm²

Type answer here

Correct Answer: 81

Deg^°

Rad