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3 years ago

Find b. Round to the nearest tenth.

Mathematics

2 answers:

Svetradugi [14.3K]3 years ago

5 0

Find Angle B: B = 180 - (82+55) = 43. Then apply the law of sines:

b 8 cm
--------- = ----------
sin 43 sin 55
(sin 43)(8 cm)
Solving for b, we get b = ------------------- = 6.66, or 6.7 (cm, to the nearest tenth).
sin 55

vlabodo [156]3 years ago

3 0

This is 90 degrees because we have to have an right angle and a right angle is 90 degrees

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