Plane Geometry Act

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Which of the following lists gives 2 of the 3 interior angle measurements of a triangle for which the third angle measurement would be equal to 1 of the given measurements?

A ladder is 10 ft long and reaches 8 ft up a wall, as shown in the figure. How many feet is the bottom of the ladder from the base of the wall?

• 2

• 3

• 6

• 1, 1, 1

• 24

• 72

In the figure shown, each pair of intersecting line segments meets at a right angle, and all the lengths given are in inches. WHat is the perimeter, in inches, of the figure?

• 40

• 52

• 56

• 66

• 80

THe trapezoid is divided into 2 triangles and 1 rectangle. Lengths are given in inches. What is the combined area, in square inches, of the 2 shaded triangles?

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• 9

• 12

• 18