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Chapter 9. COMPLETE THE RATIO:. 10. Tan x = _____. 6. x. 8. 6. __. Tan x =. 8. COMPLETE THE RATIO:. 10. Sin x = _____. 6. x. 8. 6. ___. Sin x =. 10. COMPLETE THE RATIO:. 10. Cos x = _____. 6. x. 8. 8. ___. Cos x =. 10. What does “SOH CAH TOA” stand for?.
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COMPLETE THE RATIO: 10 Tan x = _____ 6 x 8
6 __ Tan x = 8
COMPLETE THE RATIO: 10 Sin x = _____ 6 x 8
6 ___ Sin x = 10
COMPLETE THE RATIO: 10 Cos x = _____ 6 x 8
8 ___ Cos x = 10
Opposite Leg _____________ Sin =Cos =Tan = Hypotenuse Adjacent Leg _____________ Hypotenuse Opposite Leg ____________ Adjacent Leg
A surveyor stands 200 feet from a building to measure its height with a 5 foot tall theodolite. The angle of elevation to the top of the building is 35 degrees. How tall is the building?
Tan 35 = x/200 x = 140 x 145 ft 350 200 5
An airplane flying 3500 feet above ground begins a 2 degree descent to land at an airport. How many miles from the airport is the airplane when it starts its descent?
Sin 20 = 3500/x x = 100,288 ft or 19 miles 20 3500 x
COMPLETE THE RATIO: Cot x = _____ 10 6 x 8
Cot x = 8/6 10 6 x 8
COMPLETE THE RATIO: Csc x = _____ 10 6 x 8
Csc x = 10/6 10 6 x 8
COMPLETE THE RATIO: Sec x = _____ 10 6 x 8
Sec x = 10/8 10 6 x 8
COMPLETE: 1) sin2 + cos2 = _____ 2) sin/cos = _____ 3) (sin)(_____) = 1
1) sin2 + cos2 = 1 • 2) sin/cos = tan • 3) (sin)( csc ) = 1