Question

In the figure , A is the centre of the circle and
angle A = 120
find AB: AC: BC
ifAB= 8 cm what is the length of Bc?


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Answer 1

Answer:

(24 - 4π) cm^2

11.44 cm^2

Step-by-step explanation:

ABC is right angled triangle

BC^2 = AB^2 + AC^2

referring picture data

BC^2 = 6^2 + 8^2

BC = 10 cm

area of triangle abc

(1/2)*6*8 = 24 cm^2

let say radius of circle = r

then area of triangle

= (1/2)*6*r + (1/2)*8*r + (1/2)*10*r

= 12r

12r = 24

r = 2

area of circle = πr^2 = 4π cm^2

area of shaded region = (24 - 4π) cm^2

11.44 cm^2