Trig Ratios of Complementary Angles

cos(43) =

• sin(43)

• sin(47)

• 1/sin(43)

• cos(47)

Tags

CCSS.HSG.SRT.C.7

sin(20) =

• sin(70)

• cos(70)

• tan(70)

• cos(20)

If sin x = 0.4352, then cos (90 - x) = ________.

• 0.5648

• 0.4352

• 2.2978

• 0.8106

Tags

CCSS.HSG.SRT.C.7

If cos (90 - x) = 0.866, then sin (x) = _______.

• 0.5

• 0.134

• .866

• 0.0012

Segment BC is the side opposite <A but it is ________________ to <C.

• hypotenuse

• adjacent

• opposite

• complemetary

sin (A) = (BC)/(AC)

What other trig ratio equals (BC)/(AC) in this triangle?

• cos (C)

• sin (C)

• cos (A)

• tan (C)

What is the measure of <A?

• x^o

• (90 - x)^o

• (x + 90)^o

• (180 - 2x)^o