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Can anyone please help me with number 2 ❤️

Can anyone please help me with number 2 ❤️-example-1

1 Answer

4 votes

Answer:


A = 101.5825591635°

Explanation:

We can use the law of cosines. We have a triangle with side lengths as attached. (See image.)

So we want to solve for angle A.

We do this by using:


cos(A)=(b^2 + c^2 - a^2) / (2bc)

Here we have:

a = 36

b = 27

c = 19

So we plug in to get:


cos(A)=(27^2 +19^2-36^2)/(2*27*19)


cos(A)=-0.20077972709


A = 101.5825591635°

Can anyone please help me with number 2 ❤️-example-1
User Antoine Clavijo
by
6.6k points
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