The isosceles triangle has a perimeter of 570m. the third side is 30m shorter than twice the length
1 answer:
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Answer:0.175 m/s
Step-by-step explanation:
Given
Two sides of length 9 and 13 m
angle between them is increasing at an angle of 0.02 rad/min
rate of increasing of third at
let a=9
b=13
c=unknown side
Now using cos rule of triangle
Differentiating both sides we get
at
c=11.53 m
substituting values we get