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How many distinct triangles can be formed for which m∠ZE = 64°, g = 9, and e = 10?

A. Zero triangles
B. One triangle
C. Two triangles
D. Three triangles
E. Four triangles

1 Answer

4 votes

Final Answer:

Given the angle m∠ZE = 64° and sides g = 9 and e = 10, the Sine Law allows for two possible triangles, satisfying the conditions. Thus, the correct answer is option C. Two triangles

Step-by-step explanation:

When given a side (g = 9) and two angles (m∠ZE = 64° and e = 10), we can use the Sine Law to determine the possible triangles. The Sine Law states that in any triangle, the ratio of the length of a side to the sine of its opposite angle is constant. For a triangle with sides a, b, and c, and angles A, B, and C opposite to these sides, the Sine Law is expressed as:

a / sin A = b \ sin B = c \ sin C

In this case, we have g = 9, m∠ZE = 64°, and e = 10. To find the possible triangles, we consider two scenarios: one where \( \sin A \) corresponds to the given angle m∠ZE = 64°, and the other where \( \sin A \) corresponds to the angle opposite side g.

For the given angle m∠ZE = 64°, there are two possible solutions for side e = 10, resulting in two triangles. Therefore, the correct answer is C. Two triangles.

Thus, the correct answer is option C. Two triangles

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