Trig

Front

What is the definition of cosine (cos) in a right triangle?

Back

Cosine (cos) is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula to find the cosine of an angle in a right triangle?

Back

cos(θ) = adjacent / hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

If the adjacent side is 4 and the hypotenuse is 5, what is cos(θ)?

Back

cos(θ) = 4 / 5 = 0.8.

Tags

CCSS.HSG.SRT.C.6

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Tags

CCSS.8.G.B.8

Front

How do you solve for x in the equation 3x + 5 = 20?

Back

Subtract 5 from both sides: 3x = 15. Then divide by 3: x = 5.

Tags

CCSS.7.EE.B.4A

Front

What is the sine (sin) of an angle in a right triangle?

Back

Sine (sin) is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula to find the sine of an angle in a right triangle?

Back

sin(θ) = opposite / hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

If the opposite side is 3 and the hypotenuse is 5, what is sin(θ)?

Back

sin(θ) = 3 / 5 = 0.6.

Tags

CCSS.HSG.SRT.C.6

Front

What is the tangent (tan) of an angle in a right triangle?

Back

Tangent (tan) is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula to find the tangent of an angle in a right triangle?

Back

tan(θ) = opposite / adjacent.

Tags

CCSS.HSG.SRT.C.6