if each of two angle of an issosceles traingle is four times the third angle find three angle of a traingles
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Answer:
20°
Step-by-step explanation:
Let the third angle be x. Then, the other two angles are 4x and 4x, respectively.
We know that, the sum of all three angles in a triangle is 180°
x+4x+4x=180°
9x=180°
180/9=20°
x=20
Hence, the three angles are 4x = 4 x 20° = 80°,
4x = 4 x 20° = 80° and
x = 20°
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