Basic Math Formulas

Front 1

What formula is used to find out the Perimeter of a square?

Back 1

p = 4s
s = one side of the square

Front 2

What formula is used to find out the Area of a Square?

Back 2

If l is the side-length of a square, the area of the square is l2 or l × l.

Hint 2

What is the area of a square having side-length 3.4?
The area is the square of the side-length, which is 3.4 × 3.4 = 11.56.

Front 3

What formula is used to find out the Diagonal of a square?

Back 3

d = s(square root of 2)
s = one side of the square

Hint 3

A square has two diagonals, which are line segments linking opposite vertices (corners) of the square.

Front 4

What formula is used to find out the Perimeter of a rectangle?

Back 4

p = 2l + 2w
where l = length and w = the width of the rectangle

Front 5

What formula is used to find out the Area of a rectangle?

Back 5

a = lw
The area of a rectangle is the product of its width and length.

Hint 5

What is the area of a rectangle having a length of 6 and a width of 2.2?
The area is the product of these two side-lengths, which is 6 × 2.2 = 13.2.

Front 6

What formula is used to find out the Diagonal of a rectangle?

Back 6

d = (square root(l to the second power + w to the second power))

Front 7

What formula is used to find out the Perimeter of a triangle?

Back 7

The perimeter, P, of a triangle is given by the formula P = a + b + c where a, b and c are the side lengths of the triangle.

Front 8

What formula is used to find out the Area of a Triangle?

Back 8

Consider a triangle with base length b and height h.
The area of the triangle is 1/2 × b × h.

Hint 8

What is the area of the triangle having a base of length 5.2 and a height of 4.2?
The area of a triangle is half the product of its base and height, which is 1/2 ×5.2 × 4.2 = 2.6 × 4.2 = 10.92.

Front 9

What formula is used to find out the Radius of a circle?

Back 9

r = 1/2(d)
Where d = the diameter of the circle

Front 10

What formula is used to find out the diameter of a circle?

Back 10

d = 2r

Front 11

What formula is used to find out the Circumference of a circle?

Back 11

c = 2(Pi)r

Front 12

What formula is used to find out the Area of a circle?

Back 12

a = Pi(r squared)

Front 13

What formula is used to find out the Volume of a cube?

Back 13

v = s cubed
where s = the length of one side of the cube

Front 14

What formula is used to find out the Volume of a Rectangular box?

Back 14

v = lwh, where l = the length, w = the width, and h = the height of the box

Front 15

What formula is used to find out the Volume of a cylinder?

Back 15

v = (Pi)(r to the second power)(h)
where r = the radius of the cylinder and h = the height of the cylinder

Front 16

What formula is used to find out the Surface area of a cube?

Back 16

SA = 6(s to the second power)

Front 17

What formula is used to find out the Surface area of a rectangular box?

Back 17

SA = 2lw + 2wh + 2lh

Front 18

What is the Distance formula?

Back 18

d = rt
where d = distance. r = rate, and t = time

Front 19

What is the Interest formula?

Back 19

i = prt
i = interest, p = principal, r = rate, and t = time