3 years ago

Find all the missing parts to the triangle below.

1 answer:

mylen [45]3 years ago

7 0

Answer:

f = 32.45

Step-by-step explanation:

by the law of cosine: f² = 15² + 28² - 2 x 15 x 28 cos87°

f² = 225 + 784 - 840 x 0.05234 = 1053

f = 32.45

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