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torisob [31]
3 years ago
9

Helpp

Mathematics
1 answer:
azamat3 years ago
8 0

Answer:

x =12

Step-by-step explanation:

Since this is an isosceles triangle the angles at the bases of the equal sides are equal

The unmarked angle is 4x

The 3 angles of a triangle total 180 degrees

4x+4x+ 84 =180

Combine like terms

8x +84 = 180

Subtract 84 from each side

8x +84-84 = 180 -84

8x =96

Divide by 8

8x/8 = 96/8

x =12

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