8

Set 1: Triangles

Explanation

Answer: C

A triangular section of a lawn has a base of 8 miles and a perpendicular height of 11 miles. What is the area of this section?

A.

34

B.

22

C.

44

✓ Correct
D.

54

Detailed Explanation

Choice C is correct. Area of a triangle: A=12×base×heightA = \frac{1}{2} \times base \times height 1. A=12×8×11A = \frac{1}{2} \times 8 \times 11 A=12×88A = \frac{1}{2} \times 88 A=44A = 44 Therefore, the area is 44 square miles.

Key Steps:

•

The correct answer is 44

Why others are wrong:
A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.
B: This would give an incorrect result. Choice B 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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