kkhing SG The figure shows 3 identical semicircles, a circle and a square OABC enclosed in a bigger semicircle. O is the centre of the bigger semicircle and one of the small semicircles. B is the circle of the circle. Given that AB is 7 cm, find the total area of the shaded parts. (Take pie = 22/7).
Mikethm SG area of triangle ABC = 1/2 x 7 x 7 = 24.5area of Quadrant ABC = 1/4 x 22/7 x 7^2 = 38.5Area of shaded region = 4 x (38.5 - 24.5) = 56 cm^2
ThunderFbolt SG area of triangle 1/2 x 7 x 7 = 24.5 isn't that the slant height?area of triangle is 0.5 x base length x height perpendicular to base ah...
Mikethm SG area of triangle 1/2 x 7 x 7 = 24.5 isn't that the slant height?ABCD is a square. Therefore angle ABC = 90.AB(Height) = 7 and AC(Base) = 7
