What is the measure of angle B in the figure below?
о 30°
О 45°
О 60°
O90°
1 answer:
Answer:
45°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosB = 
= 
= 
, hence
B = 
( ) = 45°
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<u>Answer:</u>
<h2>a.
x ≈ 3.72</h2><h2>
b. x ≈ 8.08</h2><h2>
c. x ≈ 3.94</h2>
<u>Steps:</u>
a.
x = 7×tan(28)
x = 7×0.531..
x ≈ 3.72
b.
x = 7/cos(30)
x = 7/0.86..
x ≈ 8.08
c.
x = 6×sin(41)
x = 6×0.65..
x ≈ 3.94
