4 years ago

In ?ABC, the measure of ?C=90°, the measure of ?A=30°, and CA = 68 feet. Find the length of BC to the nearest foot

Mathematics

1 answer:

almond37 [142]4 years ago

6 0

Answer:

39 feet

Step-by-step explanation:

Since the triangle is right we can use the tan ratio to find BC

tan 30° = $\frac{opposite}{adjacent}$ = $\frac{BC}{68}$

multiply both sides by 68

68 tan 30° = BC ⇒ BC ≈ 39 feet ( to nearest foot )

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