An exterior angle is 74 degree and the interior opposite angles differ 20 degree.find all the angles of the triangle .
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an exterior angle is sum of 2 opposite interior angles.
if one angles is 20 then other angle=74-20
=54
sum of all angles in a triangle is 180
let the third angle be x
20+54+x=180
74+x=180
x=180-74
x=106
so the angles in a triangle are 106,54,20
hope it helps you
if one angles is 20 then other angle=74-20
=54
sum of all angles in a triangle is 180
let the third angle be x
20+54+x=180
74+x=180
x=180-74
x=106
so the angles in a triangle are 106,54,20
hope it helps you
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