Two sides of a triangle are 15 and 20 ft long, respectively. a) How fast is the third side increasing if the angle between the given sides is 60° and is increasing at the rate of 2º per sec. b) How fast is the area increasing?

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Chapter9: Surfaces And Solids
Section9.CR: Review Exercises
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7. Two sides of a triangle are 15 and 20 ft long, respectively.
a) How fast is the third side increasing if the angle between the given sides is 60°
and is increasing at the rate of 2º per sec.
b) How fast is the area increasing?
Transcribed Image Text:7. Two sides of a triangle are 15 and 20 ft long, respectively. a) How fast is the third side increasing if the angle between the given sides is 60° and is increasing at the rate of 2º per sec. b) How fast is the area increasing?
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