The area of a semi circle is the total space inside the semi circle. If radius of the circle = r Then, Area of the circle = (1/2)xπr2 sqare units Here, π=22/7=3.14 aproximately Ex:- radius...
A quadratic equation is very important for a student who studies in 10th std or competitive exam. I learned one. I've searched before and not so many people know about it, so I'm helping you guys now....
SURFACE AREA OF SPHERE:- If, the radius of a sphere=r Then, SURFACE AREA OF SPHERE=4πr2 Ex;- If, radius of a sphere=r=14cm SURFACE AREA OF SPHERE=4πr2 ...