Right Triangle Review w/Trig ratios to find sides & angles

A triangle has sides of 8 cm, 12 cm, and 15 cm. Classify the triangle by its angles.

• acute

• obtuse

• right

• Not a triangle

A triangle has sides of 4 cm, 7 cm, and 6 cm. Classify the triangle by its angles.

• acute

• obtuse

• right

• Not a triangle

A triangle has sides of 11 cm, 8 cm, and 2 cm. Classify the triangle by its angles.

• acute

• obtuse

• right

• Not a triangle

A triangle has sides of 41 cm, 9 cm, and 40 cm. Classify the triangle by its angles.

• acute

• obtuse

• right

• Not a triangle

√125

• 5√5
• 25√5
• 5√25
• 5√2

√24

• 4√6
• 2√6
• 6√2
• 2√12

Simplify 4√75

• 4√5
• 12√5
• 20√3
• 7√3

Simplify 3√16

• 12

• 48

• √12

• 3√4

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8