In ΔGHI, g = 63 cm, h = 80 cm and i=42 cm. Find the measure of ∠I to the nearest 10th of a degree.
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Answer:
Step-by-step explanation:
The Law of Sines is
Filling in what we are given:
Cross multiply to get
and divide to solve for side c:
which gives you that
c = 8.45
We know that angle B has to be the difference between 180 and angle A and angle C, so
angle B = 51
Now we can solve for side b:
and
and
b = 21.03