Set 1: Triangles

Explanation

Answer: B

Mia walks 22 inches east and then 120 inches north. What is the straight-line distance from Mia's starting point?

122

✓ Correct

112

132

Detailed Explanation

Choice B is correct. Using the Pythagorean theorem: $a^2 + b^2 = c^2$ 1. Given values: 22 and 120 Calculate: $22^2 + 120^2 = 484 + 14400 = 14884$ Take square root: $\sqrt{14884} = 122$ Therefore, the answer is 122 inches.

Key Steps:

•

The correct answer is 122

Why others are wrong:

A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.

C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.

D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.

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