The measures of two angles of a triangle are 25° and 87°. Is the triangle acute, right, or obtuse? Explain.

asked Apr 12, 2019 113k views

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The triangle is acute because the angles 25 and 87 are less than 90 degrees.

Whymatter answered Apr 14, 2019

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180°- (25°+87°)= 180°-112°=68°
The triangle is acute because the measures of all angles of the triangle are less than 90°.

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