Math Formulas

Question 1

Area of a circle

Answer 1

πr2

Question 2

Area of a trapezium

Answer 2

1/2 (a+b) * h

Question 3

Volume/Surface Area of a hemisphere

Answer 3

half of volume/surface area of sphere (provided)

Question 4

Volume of a cylinder

Answer 4

πrsquaredh

Question 5

Curved surface area of a cylinder

Answer 5

2πrh

Question 6

Volume of a pyramid

Answer 6

1/3 * base area * height

Question 7

Surface area of a pyramid

Answer 7

(1/2*perimeter of of base * slant height) + base area

Question 8

Simple interest formula

Answer 8

PRT/100

Question 9

Number patterns: constant difference!

Answer 9

a + d (n-1)
a = 1st term
d = common difference
n = term number