Trigonometry to find Missing Sides

What trigonometric function is used to find side 'a' in a right triangle when given the opposite side and adjacent side?

• Secant

• Cosine

• Sine

• Tangent

Tags

CCSS.HSG.SRT.C.6

If the tangent of 65 degrees is used to calculate side 'a', and the adjacent side is 5, what is the formula for 'a'?

• a = 5 + tan(65)

• a = tan(65) / 5

• a = 5 * tan(65)

• a = 5 / tan(65)

Tags

CCSS.HSG.SRT.C.8

What is the approximate value of side 'a' when calculated using a tangent of 65 degrees?

• 12.3

• 9.5

• 11.8

• 10.7

Tags

CCSS.HSG.SRT.C.8

Which trigonometric function is used to determine the length of the hypotenuse 'b' in a right triangle?

• Cotangent

• Tangent

• Cosine

• Sine

Tags

CCSS.HSG.SRT.C.6

Using the cosine of 65 degrees and an adjacent side of 5, what is the formula to find 'b'?

• b = 5 * cos(65)

• b = 5 / cos(65)

• b = cos(65) / 5

• b = 5 + cos(65)

Tags

CCSS.HSG.SRT.C.6

What is the approximate value of 'b' when calculated using the cosine of 65 degrees?

• 12.3

• 9.5

• 11.8

• 10.7

Tags

CCSS.HSG.SRT.C.8

How can the Pythagorean theorem be used to verify the length of side 'b'?

• 10.7^2 + b^2 = 5^2

• 5^2 + b^2 = 10.7^2

• b^2 + 10.7^2 = 5^2

• 5^2 + 10.7^2 = b^2

Tags

CCSS.8.G.B.8

What is the sum of the angles in any triangle?

• 360 degrees

• 180 degrees

• 90 degrees

• 270 degrees

Tags

CCSS.8.G.A.5

If angle Y is 65 degrees in a right triangle, what is the measure of angle W?

• 25 degrees

• 30 degrees

• 40 degrees

• 35 degrees

Tags

CCSS.8.G.A.5

Which statement is true regarding the angles in the right triangle discussed?

• Angle Y is 90 degrees

• Angle W is the smallest angle

• Angle Y is the smallest angle

• Angle W is 90 degrees

Tags

CCSS.HSG.CO.C.10