Grade 128 grade maths
A quadrilateral has three acute angles, each measure 80°. What is the measure of the fourth angle?
A quadrilateral has three acute angles, each measure 80°. What is the measure of the fourth angle?
1 Answer
Vishnu Vardhan
Sum of all the angles in a quadrilateral is 360.
Sum of three angles,each 80° is 240°
so total angles(360°) - sum of three angles (240°)= 120°
So,the remaining angle is 120°.
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