what is the area of a circle?

pi x r^2

what is the area of a trapezoid

½ x (b1+b2) x h

what is the area of a rhombus using diagonals and kite

½ x (d1x d2)

what is the area of an ellipse

pi x a x b

what is the formula of an sector of a circle in degrees

0/360 x pi r²

what is the formula of a sector of a circle in radians

½ r²0

the volume of a cube

V= s³

the volume of a triangular prism

V= (1/2x b x h) x H

cylinder

V= pi r²h

pyramid

1/3 x B x h

square pyramid

1/3 x L x w x h

cones

1/3 pi r²h

spheres

v= 4/3pi r³

hemisphere

2/3 pi ri³