Measures of two angles of a triangle are the same and the third angle is 80ᵒ. Find the measure of each angle.
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Answer:
if third angle is 80⁰ then
sun of triangle is 180⁰
and
a+b+c=180⁰
a+a+c=180⁰
2a+80⁰=180⁰
2a=180⁰-80⁰
2a=100⁰
a=100/2
a=50⁰
&
b is also =50⁰
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