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Lisa [10]
3 years ago
15

PLEASE HELP!!! Okay so I have a triangle and one side is 11 cm, another is 8 cm, and the other is 5 cm. Can someone please find

the measure of each angle? 30 points!!!
Mathematics
1 answer:
Zigmanuir [339]3 years ago
8 0
When the length of sides are given, you can use law of cosine to find the angles
Refer to this website for details
https://www.mathsisfun.com/algebra/trig-cosine-law.html

11^=8^2+5^2-2*8*5cosA
-80cosA=32
cosA=-0.4
A is about 114 degree
use the same method to find out B and C, you will get 42 and 25


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Step-by-step explanation:

Alright, lets get started.

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