Solving for Angle Measures of Right Triangles — Cumulative exam Answers
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21
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The hypotenuse of a 45°-45°-90° triangle measures units.
7
7 unitsu
units1
14 unitsu
units
22
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Which diagram shows possible angle measures of a triangle?
A
A triangle has angle lengths 35 degrees, 115 degrees, and 25 degrees.B
A triangle has angle lengths 32 degrees, 115 degrees, and 33 degrees.
C
A triangle has angle lengths 35 degrees, 120 degrees, and 35 degrees.
D
a triangle has angle lengths 30 degrees, 120 degrees, and 20 degrees.
23
On a coordinate plane, 2 triangles are shown. Triangle A B C has points (negative 1, 1), (negative 4, 1) and (negative 1, 5). Triangle L M N has points (1, negative 1), (1, negative 4), and (5, negative 1).
A
The figures are congruent because a 270° rotation about the origin and then a reflection over the x-axis will map ΔABC onto ΔLMN.B
The figures are congruent because a 180 rotation about the origin and then a reflection over the x-axis will map ΔABC onto ΔLMN.C
The figures are not congruent because point B corresponds with point N and point C corresponds with point M.D
The figures are not congruent because there is no rigid transformation or combination of rigid transformations that will map ΔABC onto ΔLMN.24
Question text not available
A
60°B
90°C
180°D
360°
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