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Can someone help me pls, I will really appreciate it
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Can someone help me pls, I will really appreciate it

Can someone help me pls, I will really appreciate it-example-1
User Roman Alexander
by
7.4k points

1 Answer

5 votes

Use the law of cosines to find the missing length, which we'll call
d:


d^2=100^2+120^2-2(100)(120)\cos 45^\circ


d^2=24400-12000√(2)


\boxed{d\approx 86\text{ cm}}.

User Jim Maguire
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7.3k points
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