Question

please solve this sum of maths
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Answer 1

Answer:

centriod divides altitude in the ratio of 2:1

Answer 2

Answer:

20√3 m

Step-by-step explanation:

Given Radius = 20m

Since the 3 boys are sat at equal distance:

Angle of each of the 3 sectors are equal

Angle at each sector = 360 ÷ 3 = 120°

Since each sector has 2 equal radius:

Triangle in each sector is an isosceles triangle.

Angles of the isosceles triangle = (180 - 120) ÷ 2 = 30°

Define x:

Let the length of the string be x.

Using sine rule:

a/SinA = b/SinB

x/sin(120) = 20/sin(30)

x/sin(120) = 40

x = 20√3 m