Area Worksheet

1 a.

triangle with vertices (-10, -2), (-4, -6), and (-10, -5).

1 b.

triangle with vertices (-9, 2), (-5, -3), and (7, 7).

2 a.

triangle with vertices (0, -2), (-4, -9), and (-3, 9).

2 b.

triangle with vertices (1, -4), (3, -5), and (-6, 4).

3 a.

trapezoid with vertices (-6, 2), (6, 2), (4, -5), and (-4, -5).

3 b.

trapezoid with vertices (-8, 10), (6, 10), (3, -5), and (-3, -5).

4 a.

triangle with vertices (-9, 7), (-9, -7), and (5, 7).

4 b.

hexagon with vertices (-4, 9), (3, 4), (6, 7), (5, -3), (-1, -5), and (-10, -8).

Answer Key

1 a.	The area is 9 square units.

1 b.	The area is 50 square units.

2 a.	The area is 32.5 square units.

2 b.	The area is 4.5 square units.

3 a.	The area is 70 square units.

3 b.	The area is 150 square units.

4 a.	The area is 98 square units.

4 b.	The area is 145.5 square units.

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