# geometry

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how do i find the degree of a right angle, split into two different angles.

ex. if m<10 = 80*, then m<11 = ?

• geometry -

The two angles must add to 90 degrees
so if one of them is 10
then the other one is 90 - 10
or 80

If one is 40
then the other is 90 - 40
or 50

Angles that add to a right angle are called complementary.

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