Find the value of the unknown angle. 25 30 43 80

asked Dec 24, 2021 133k views

3 votes

Find the value of the unknown angle.
25
30
43
80

by Eliko

5.8k points

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4 votes

Answer:

It is 30°

Explanation:

Putting the formula exterior angle of a triangle = the sum of 2 interior angles of a triangle.

let the angle be x;

Therefore,

80°+x = 110°

x = ( 110 - 80 )°

x = 30°

Visualspark answered Dec 30, 2021

5.9k points

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