A certain triangle has two 45° angles. What type of triangle is it?

1 answer:

3 0

Answer is a right triangle. The angles of a triangle must add to 180 degrees.
You have two 45 degree angles
45 + 45= 90
Now you need 1 more angle to equal 180
180- 90= 90
A right angle is 90 degrees. A right triangle has one right angle and two acute.

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$=\ ^nC_2$