67.2k views
1 vote
PLEASE HELP!!!!

If B=62° and c=24, find b.

a. 21.2
b. 18.5
c. 14.2
d. 24.3

PLEASE HELP!!!! If B=62° and c=24, find b. a. 21.2 b. 18.5 c. 14.2 d. 24.3-example-1
User Chefes
by
8.4k points

2 Answers

3 votes

Answer:

a. 21.2

Explanation:

Given: Angle B = 62 and side c = 24.

We have to find the length of b.

The given triangle is a right triangle because m∠C = 90 degrees.

To find the side b, we can use the sin ratio.

sin = opposite / Hypotenuse

Here opposite = b, hypotenuse = c = 24, angle B = 62

Therefore, sin 62 =
(b)/(24)

Multiplying both sides by 24, we get

24 sin 62 = b

[sin 62 = 0.883]

Now plug in sin 62 = 0.883 in the above equation, we get

24*0.883 = b

b = 21.2 [Rounded off to the nearest tenths place]

Answer: a. 21.2

User Meike
by
8.5k points
1 vote

b = sin of angle B times length of c

b = 24*sin(62) = 21.1907

= 21.2

answer is A

User Ashutosh Meher
by
8.3k points