how to find radius/rayon
R= Diameter divided by 2
how get %
Y divided by 100 times Z
what is pi
3.14
how to find diameter
D= radius x 2
how to find circumference
C= D times pi (3.14)
how to find area of a square.
AoS= base x hight
how to find area of triangle
AoT= base x Hight divided by 2
how to find area of a circle
AoC= pi(3.14) x R2