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Not too sure how to solve this
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Not too sure how to solve this

Not too sure how to solve this-example-1
User Lhuber
by
8.1k points

1 Answer

5 votes

Answer:

The smallest angle is angle Z because the shortest side (6.3 cm) is opposite the smallest angle.

Set your calculator to degree mode.

Using the Law of Cosines:

6.3^2 = 7.2^2 + 8.5^2 - 2(7.2)(8.5)cos(Z)

39.69 = 124.09 - 122.4cos(Z)

-84.4 = -122.4cos(Z)

cos(Z) = 211/306

Z = cos^-1 (211/306) = 46.41°

User Hoserdude
by
7.3k points
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