A 20-Meter Line Is Used to Tether a Helium-Filled Balloon $$\sin 85 ^ { \circ } = \frac { h } { 20 }$$

question 47

Multiple Choice

A 20-meter line is used to tether a helium-filled balloon.Because of a breeze,the line makes an angle of approximately 85° with the ground.Use a trigonometric function to write an equation involving the unknown quantity. ?

• A) \[\sin 85 ^ { \circ } = \frac { h } { 20 }\] (where h is height. )
• B) \(\cos 85 ^ { \circ } = \frac { h } { 20 }\) (where h is height. )
• C) \(\cos 85 ^ { \circ } = \frac { 20 } { h }\) (where h is height. )
• D) \(\sin 85 ^ { \circ } = \frac { 20 } { h }\) (where h is height. )
• E) \(\tan 85 ^ { \circ } = \frac { h } { 20 }\) (where h is height. )

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