Right Triangle Trigonometry Find the Missing Side

To use the Pythagorean Theorem, we need...

• A triangle with 2 known angles

• A right triangle with 2 known angles

• A triangle with 2 known sides

• A right triangle with 2 known sides

Which set of sides would make a right triangle?

• 4, 5, 6

• 8, 10, 12

• 5, 12, 13

• 5, 10, 12

What type of triangles do you use the trig ratios with?

• any type

• right triangle

• obtuse triangle

• acute triangle

In SOHCAHTOA what does O stand for?

• Outside

• Opposite

• Over

• Order

What can you find with trig ratios (sin, cos, tan)?

• Missing sides

• missing angles

• area of a triangle

• missing sides, angles and area of a triangle

From ∠C, what side is AB?

• Adjacent

• Hypotenuse

• Opposite

Which is the ratio of the opposite leg to the hypotenuse in a right triangle?

• sine

• cosine

• tangent

• secant

What is the side across from the right angle called?

• Leg

• Pythagoras

• Hypotenuse

• Altitude

Find sinA

• 32/24

• 24/32

• 24/40

• 32/40

Find sinC

• 28/35

• 35/28

• 21/35

• 28/21