1.

Interior angle measures of 45┬░ and 45┬░. The third angle of the triangle is ┬░.

Answer»

As we know the totals sum of angle of triangle is 180 DEGREE

So,
45 degree + 45 degree + THIRD ANGLE = 180 degree
90 degree + THIRD ANGLE = 180 degree
90 degree - 90 degree + THIRD ANGLE = 180 degree - 90 degree ( Subtracting 90 degree from
both the SIDES )
THIRD ANGLE = 90 degree

Therefore , measure of THIRD ANGLE is 90 degree .

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