IXL | Solve problems involving angle measures

Ben's Bike Shop is holding a design competition: "Design Your Dream Ride." The winning design will be built and custom-painted by the shop.

Find the unknown angle measure,

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Learn with an example

Sandeep is building a birdhouse. To start, he draws two lines on a wooden plank. Each line makes a

angle with the top of the plank. Next, he'll cut the plank along the two lines.

Find the unknown angle measure,

A straight angle has a measure of

180

The top of the wooden plank is a straight angle. This means the measures of the two

angles and the unknown angle,

add up to

180

To solve for

subtract

from

180

twice.

180

–

125

–

The unknown angle measure,

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