Mathematics Question and Solution
Calculating Area Circle.
Let x be the radius of the circle.
a² = 4
a = 2 m.
a is the side length of the small square.
b² = 16
b = 4 m.
b is the side length of the big square.
c = (x-2) units.
It implies;
(x-2)²+6² = x²
x²-4x+4+36 =x²
4x = 40
x = 10 m.
Again, x is the radius of the circle.
Or
d = (x-4) m.
It implies;
(x-4)²+8² = x²
x²-8x+16+64 = x²
8x = 80
x = 10 m.
x is the radius of the circle.
Therefore, area circle is;
πx²
10²*π
= 100π m²
