Special Right Triangles Answers

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3

Which classification best represents a triangle with side lengths 6 cm, 10 cm, and 12 cm?

A
acute, because 62 + 102 < 122
B
acute, because 6 + 10 > 12
C
obtuse, because 62 + 102 < 122
D
obtuse, because 6 + 10 > 12
6

Arielle is building the wooden framework for the roof of a house. She needs the angle created by the vertical and horizontal boards of the frame to be a right angle. The height of the vertical board is 12 feet. The length of the horizontal board is 15 feet. The support beam that will connect the ends of the two boards measures 20 feet.

A
It is an acute triangle. About 0.8 foot needs to be removed from the 20-foot board to create a right triangle.
B
It is an obtuse triangle. About 0.8 foot needs to be removed from the 20-foot board to create a right triangle.
C
It is an acute triangle. About 7 feet need to be removed from the 20-foot board to create a right triangle.
D
It is an obtuse triangle. About 7 feet need to be removed from the 20-foot board to create a right triangle.

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Special Right Triangles Answers — Mathematics…