What is the measurement needed of the third side of a triangle with two sides of 10 mm and 10 mm to make it a 45°, 45°, 90° triangle?
A)7.07 mm
B)14.14 mm
C)10 mm
D)17.32 mm

Question

Quizplus · Accepted Answer

In a 45°, 45°, 90° triangle, the ratio of the sides is x:x:x√2 (where x is the length of the two equal sides).
So, in this case, the third side would be 10√2 mm or approximately 14.14 mm (since the two equal sides are already 10 mm each). Therefore, the best choice is B.

What Is the Measurement Needed of the Third Side of a Triangle