Magnitude 23271

In an isosceles triangle, the angle at the primary vertex is 20 ° smaller than twice the magnitude of the angle at the base. What are the interior angles of a triangle?

Correct answer:

A =  80 °
B =  50 °
C =  50 °

Step-by-step explanation:

A=2B  20  A+B+C=180  B=C  (2 B20)+B+B=180  4B=200  B=4200=50  B=50  A=2 B20=2 5020=80
C=B=50=50



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Calculation of an isosceles triangle.
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