IXL - Triangle Angle-Sum Theorem (Geometry practice)

The diagram shows a triangle.

33°

What is the value of

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Learn with an example

The diagram shows a triangle.

41°

36°

What is the value of

The sum of the interior angle measures of a triangle is 180°.

First, look at the interior angle measures in the triangle.

Set the sum of the interior angle measures of the triangle equal to 180°. Solve for

41°

36°

180°

77°

Combine like terms

180°

Combine like terms

Subtract 77° from both sides

103°

Subtract 77° from both sides

So,

103°

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