Exploring 45-45-90 Special Right Triangles

What type of triangle is being discussed?

• Acute triangle

• Scalene triangle

• Equilateral triangle

• Isosceles right triangle

Tags

CCSS.4.G.A.2

What is the special property of the sides in a 45-45-90 triangle?

• All sides have different lengths

• Hypotenuse is the longest side

• Two sides are equal

• All sides are equal

Tags

CCSS.HSG.CO.C.10

How do you find the length of the hypotenuse in a 45-45-90 triangle?

• Multiply the leg by radical two

• Subtract radical two from the leg

• Divide the leg by radical two

• Add radical two to the leg

Tags

CCSS.8.G.B.8

What is the result of solving for C in the given proportion?

• C = 20 radical two

• C = 20

• C = 10 radical two

• C = 40

Tags

CCSS.HSG.SRT.C.8

How do you solve for a leg when the hypotenuse is known?

• Subtract radical two from the hypotenuse

• Divide the hypotenuse by radical two

• Multiply the hypotenuse by radical two

• Add radical two to the hypotenuse

Tags

CCSS.8.G.B.7

What is the formula to find the length of a leg in a 45-45-90 triangle?

• Leg = Hypotenuse / radical two

• Leg = Hypotenuse * radical two

• Leg = Hypotenuse + radical two

• Leg = Hypotenuse - radical two

Tags

CCSS.8.G.B.8

What is the length of side B when given B over 8 equals radical two over one?

• B = 8 radical two

• B = 16

• B = 4 radical two

• B = 8

Tags

CCSS.8.G.B.8

How do you rationalize the denominator when solving for a side length?

• Multiply by radical two

• Divide by radical two

• Add radical two

• Subtract radical two

What is the value of Z when solving the given proportion?

• Z = 22

• Z = 11

• Z = 11 radical two

• Z = 22 radical two

Tags

CCSS.8.G.B.8

What is the missing angle in the last example?

• 60 degrees

• 45 degrees

• 90 degrees

• 30 degrees

Tags

CCSS.7.G.B.5