IXL | Find missing angles in triangles

The diagram shows a triangle.

98°

43°

What is the value of

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Learn with an example

The diagram shows a triangle.

115°

32°

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.

115

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

115°

32°

180°

147°

Combine like terms

180°

Combine like terms

Subtract 147° from both sides

33°

Subtract 147° from both sides

So,

33°

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