How to use special right triangles to determine the leg of a triangle

What is the characteristic of the angles in a 45-45-90 triangle?

• Three 60-degree angles

• Two 45-degree angles and one 90-degree angle

• One 45-degree angle and two 90-degree angles

• One 30-degree angle and two 60-degree angles

How do you find the hypotenuse of a 45-45-90 triangle if you know the length of one leg?

• Divide the leg by the square root of 2

• Multiply the leg by 2

• Multiply the leg by the square root of 2

• Divide the leg by 2

If the hypotenuse of a 45-45-90 triangle is known, how can you find the length of a leg?

• Divide the hypotenuse by 2

• Multiply the hypotenuse by the square root of 2

• Divide the hypotenuse by the square root of 2

• Multiply the hypotenuse by 2

Why is it necessary to rationalize the denominator when calculating the leg length from the hypotenuse?

• To make the calculation easier

• To eliminate the irrational number in the denominator

• To increase the accuracy of the result

• To simplify the numerator

What is the final expression for the leg length when the hypotenuse is 17 in a 45-45-90 triangle?

• 17 sqrt 2 / 2

• 17 * sqrt 2

• 17 / 2

• 17 / sqrt 2