1. The formula for the area of a trapezoid - P=(a+b)xh/2

P-area

a-side

b-side

h-height

2. The formula for the area of a circle - A=mr2

A-side

r-radiuss

m-number pi (3.14)

3. Pythagoream theorem 

a2+b2=c2

 a-side

b-side

c-hypotenuse

4. The formula for the area of a thiangle

h-height

a-side

P-area

5.the formula for the area 

of a parallelogram

P=axa

P-area

a-side

h-height

6.The formila for area of a rectangle 

P=axb

P-area

a-side

b-side

7. The formula for the area

 and volume of cube 

P=6a2     V=a3

 7.

P-area

a-side

V-vilume

8. Formula for the area of a rhombus

P=e x f/2

P -area

e-diagonals

f-diagonals

9. The formula for the area of a square 

  P=a x h/2 

Mathematic is not a difficult subject, ypu have to understand it because it can be useful

THANK YOU FOR YOUR ATTENTION .