Answers2026-2027_MDCPS_1206315_Geometry Sem 2Special Right Triangles

Special Right Triangles Answers

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1
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Which equation could be used to find m∠E in △EFG?

A
m∠E = cos–1
Option A
B
m∠E = cos–1
Option B
C
m∠E = tan–1
Option C
D
m∠E = tan–1
Option D
2
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Answer not available
5

Determine the unknown angle measures of △DEF. Round to the nearest degree. m∠D = ° m∠F = °

Answers:
Selection 1:46
Selection 2:44
6

Question text not available

Answer not available
9

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Answer not available
10

Which equations for the measures of the unknown angles x and y are correct? Check all that apply.

A
x = cos–1
Option A
B
x = sin–1
Option B
C
x = tan–1
Option C
D
y = sin–1
Option D
E
y = cos–1
Option E
11

Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round to the nearest degree.

A
18° and 39°
B
23° and 67°
C
43° and 47°
D
65° and 25°
12

What is the measure of the angle that the slide makes with the ground, x, to the nearest degree?

A
28°
B
36°
C
54°
D
62°
13

Question text not available

Answer:

16

14

A helicopter flies 665 feet above ground. What is the measure of the angle of depression from the helicopter to the girl’s line of sight? Round to the nearest degree.

A
23°
B
25°
C
65°
D
67°
15

Compare the measures of the different angles of elevation and depression that are labeled in the diagram. Which statements are true? Check all that apply.

A
x > y
B
v > x
C
w = y
D
y < v
E
v = w
F
x < w

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Lesson 2.9: Special Right Triangles