The triangular symbol on the “PLAY” button of a DVD has congruent angles at M and N. If
The measures of angle M and angle N.
Given:
The triangular symbol on the “PLAY” button has congruent angles at M and N.
Figure
Property used:
The sum of the three angles in a triangle is
Definition:
If the two angles of a triangle is congruent, then the measures of the angles are same.
Calculation:
Calculate the angle M and angle N.
Substitute
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