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In a triangle, two angles measure 65° and 45°. What is the measure of the third angle, and why?

To solve this, use the fact that the sum of the angles in a triangle is always 180°. If two of the angles are 65° and 45°, then the third angle can be found by subtracting the sum of these two angles from 180°: 180° - (65° + 45°) = 180° - 110° = 70°. So, the measure of the third angle is 70°. This is because the sum 

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Answered by: Maria D
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What's a right angle?

A right angle is an angle that measures exactly 90 degrees. It is one of the basic types of angles in geometry and represents a quarter turn or a perpendicular intersection of two lines. Right angles are often denoted by a small square placed in the angle's corner. They are a fundamental aspect of many geometric figur 

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Answered by: Katie A
4.4K views

What's an obtuse angle?

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees. It's larger than a right angle (which is exactly 90 degrees) but smaller than a straight angle (which is exactly 180 degrees). Obtuse angles are common in various geometric shapes and designs. 

Answered by: Katie A
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