Radicals and Right Triangles

Find the missing side lengths. Leave your answers in simplest radical form.

Find the value of y.

If the length of the legs of a right triangle are 5 and 7, what is the length of the hypotenuse?

What is the hypotenuse of a 45-45-90 triangle whose leg is 7 cm long?

If the Pythagoras property holds, the triangle must be _____

• right angled

• acute angled

• obtuse angled

The Pythagorean Theorem ONLY works on which triangle? 

• obtuse

• scalene

• isosceles

• right

• A
• B
• C
• D

In this 30-60-90 triangle, what is the length of the long leg?

• A
• B
• C
• D

• A
• B
• C
• D