afranklin1383 afranklin1383

01-10-2021
Mathematics

contestada

Can someone tell me the answer to this???

Can someone tell me the answer to this class=

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soccerfan54 soccerfan54

01-10-2021

This is an isosceles triangle, which means both of the unknown angles have the same size. Sum of the angles in a triangle is 180. One is 40.
180 - 40=140
140/2=70
Now we can write the equation:
8x - 10 =70
8x=80
X=10

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