Question

09. One of the angles of a triangle has measure 80 degree and the other two angles are
equal. Find these two angles.​

Answer 1

Answer:

80 + x +x = 180 (Angle sum property)

80 + 2x = 180

2x = 180 - 80

2x = 100

x = 100/2

x = 50

Answer 2

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LET THE FIRST ONE = X

SO

THE OTHER WILL BE = X

3RD ANGLE = 80° (GIVEN)

X+X+80= 180° [ ANGLE SUM PROPERTY]

2X= 180°-80°

2X= 100°

X= 50°

SO EACH EQUAL ANGLE IS OF 50°