Unknown Leg Lengths in Right Triangles Answers

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1
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Which equation can be used to find the missing leg in the triangle?

A
a2 + 202 = 162
B
202 + 162 = a2
C
a2 + 162 =202
D
16 + a2 = 20
3

In which step did Shawna make an error?

A
Step 1. She incorrectly applied the Pythagorean theorem.
B
Step 2. She incorrectly squared the numbers.
C
Step 3. She incorrectly isolated a2
D
Step 4. She incorrectly solved for a.
8

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Answers:
Selection 1:Leg, distance from the wall to the base of the ladder.
Selection 2:15
Selection 3:22
Selection 4:16.09 feet
11

c = 715✔ 2237

A
7
B
15
C
✔ 22
D
37

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