90,322 views
43 votes
43 votes
Find the length of BC again

Find the length of BC again-example-1
User Pete TNT
by
2.9k points

2 Answers

21 votes
21 votes

Answer:

BC = 26.05

Explanation:

SOH CAH TOA

tan 61 = 47/BC

BC = 47/tan 61

User Vicheanak
by
3.4k points
17 votes
17 votes

Since this is a right triangle, we can use one of the three main trigonometric functions: sine, cosine, or tangent.

Remember: SOH-CAH-TOA

Looking from the angle, we know the opposite side and want to know the adjacent side. Therefore, we should use the tangent function.

tan(61) = 47 / BC

BC = 47 / tan(61)

BC = 26.05 units

Hope this helps!

User Justmade
by
3.4k points