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If the sum of the measures of two angles is ninety degrees then the angles are what?
Complementary
How many degrees do the measures of complementary angles add up to?
Ninety Degrees
What is the angle called that measures exactly ninety degrees?
A right angle is exactly 90 degrees.
What two angles are----if the sum of their measures in ninety?
Complementary
What is the rectangle size of angles?
Ninety degrees.
When two angles added together equal ninety degrees they are said to be?
Two angles are called complementary angles if the sum of their degree measurements equals 90 degrees. One of the complementary angles is said to be the complement of the other.
When the sum of two angles are ninety degrees?
They are complementary.
What is complementry angles?
Two angles whos sum equals ninety degrees
Why must a right triangle have two acute angles?
A right angle must have two acute angles because since one angle is ninety degrees, than the other two must equal ninety degrees. To make ninety degrees with two angles, both of them must be acute, or less than 90 degrees (each).
How many degrees are there in 3 right angles?
270. A right angle is ninety degrees.
What type of triangle has an angle that measures 20 degrees and an angle that measures ninety degrees?
It is a right angle triangle and its 3rd angle is 70 degrees.
How is it call a triangle with two angles that are complementary?
Complementary angles add up to ninety degrees. Triangles must hold 180. Taking these facts together, think of this: you have two angles in a triangle where they add up to ninety. This means that the other angle in the triangle must hold the other ninety. I'm not going to answer your question, but I'll pose you the question you should have asked: What is a triangle called when it has one angle that is exactly ninety degrees?
