Solve for a I need help on this I been struggling at this for a while.

asked Jan 3, 2021 149k views

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1 vote

Answer:

About 2.2

Explanation:

By the law of cosines:

$a^2=b^2+c^2-2bc\cos(A) \\\\a^2=3^2+4^2-2(3)(4)\cos(32) \\\\a^2=9+16-24\cos(32) \\\\a^2\approx 4.65 \\\\a\approx 2.2$

Hope this helps!

Seninp answered Jan 8, 2021

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