Special Right Triangle Rules

Find the value of y.

• 8

• 4

• 2√3

• 8√3

Find the lengths of the missing sides.

If you have an isosceles right triangle and you know the length of the leg, how do you find the hypotenuse

• multiply the leg by 2

• multiply the leg by radical 2

• divide the leg by 2

• divide the leg by radical 2

If you have an isosceles right triangle and you know the length of the hypotenuse, how do you find the leg

• multiply the hypotenuse by 2

• multiply the hypotenuse by radical 2

• divide the hypotenuse by 2

• divide the hypotenuse by radical 2

If you have 30-60 right triangle and you know the length of the short leg, how do you find the long leg

• multiply the short leg by 2

• multiply the short leg by radical 3

• divide the short leg by 2

• divide the  short leg by radical 3

If you have 30-60 right triangle and you know the length of the long leg, how do you find the short leg

• multiply the long leg by 2

• multiply the long leg by radical 3

• divide the long leg by 2

• divide the long leg by radical 3

If I have a 45-45-90 Triangle and I am given the Leg, to find the Hypotenuse I _____.

• Multiply by √2

• Divide by 2, then Multiply by √2

• Multiply by √3

• Multiply by 2

• Divide by 3, then Multiply by √3

If I have a 45-45-90 Triangle and I am given the Hypotenuse, to find the Leg I _____.

• Multiply by √2

• Divide by 2, then Multiply by √2

• Multiply by √3

• Multiply by 2

• Divide by 3, then Multiply by √3

If I have a 30-60-90 Triangle and I am given the Short Leg, to find the Long Leg I _____.

• Multiply by √2

• Divide by 2, then Multiply by √2

• Multiply by √3

• Multiply by 2

• Divide by 3, then Multiply by √3

If I have a 30-60-90 Triangle and I am given the Short Leg, to find the Hypotenuse I _____.

• Divide by 2

• Divide by 2, then Multiply by √2

• Multiply by √3

• Multiply by 2

• Divide by 3, then Multiply by √3