The perimeter of a triangle is 76cm side of the triangle is twice as long as side b .side c is 1 cm longer than a side a .find t
1 answer:
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Answer:
The length of arc is 7.85cm
Step-by-step explanation:
You can find the length of arc by using the formula :
θ = 90°
r = 5cm
Arc = (90/360)×2×π×5
= (1/4)×2×π×5
= (1/4)×10×π
= (5/2)π
= 7.85 cm (3s.f)
The problem is modelled as right angle triangle, shown in the diagram below
The distance between the pilot and the house is labelled as
Using the trigonometry ratio of sine
The distance between the pilot and the house is labelled as
Using the trigonometry ratio of sine