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20 Important Geometry Formulas You Should Know About

In this article, we will look into 20 Important Geometry Formulas You Should Know About. In a mathematical world, there are few basic geometry formulas which are important for everyone to understand and remember so that it can be used to solve the complex problems in multiple streams. Whether it is for academic purposes or for solving other technical problems, one can find the application of these formulas almost everywhere in their life. More on wikipedia.

20 Important Geometry Formulas You Should Know About

20 Important Geometry Formulas You Should Know About

Also Read: 50 Important Questions on Melting Point of Different Substances

1. How to find the area of a Circle ?

Ans. The area of a circle is given as,

20 Important Geometry Formulas You Should Know About 2

where, r = radius of circle.

 

2. How to find the circumference of a Circle ?

Ans. The circumference of a circle is given as,

20 Important Geometry Formulas You Should Know About 3 where, r = radius of the circle.

 

3. How to find the area of a rectangle ?

Ans. The area of a rectangle is given as,

20 Important Geometry Formulas You Should Know About 4

 

w = width of the rectangle

l = length of the rectangle

 

4. How to find the perimeter of a rectangle ?

Ans. The perimeter of a rectangle is given as,

20 Important Geometry Formulas You Should Know About 5

 

l = length of the rectangle

w = width of the rectangle.

 

5. How to find the perimeter of a square ?

Ans. The perimeter of a square is given as,

20 Important Geometry Formulas You Should Know About 6where, a = side of the square.

 

6. How to find the area of a square ?

Ans. The area of a square is given as,

20 Important Geometry Formulas You Should Know About 7 where, a = side of the square.

 

7. How to find the volume of a sphere ?

Ans. The volume of a sphere is given as,

20 Important Geometry Formulas You Should Know About 8 where, r = radius of the sphere.

 

8. How to find the surface area of a sphere ?

Ans. The surface area of a sphere is given as,

20 Important Geometry Formulas You Should Know About 9 where, r = radius of the sphere.

 

9. How to find the area of a triangle ?

Ans. The area of a triangle is given as,

20 Important Geometry Formulas You Should Know About 10

 

 

h = height of the triangle

b = base of the triangle

 

10. How to find the perimeter of a triangle ?

Ans. The perimeter of a triangle is given as,

20 Important Geometry Formulas You Should Know About 11

 

 

 

 

 

 

20 Important Geometry Formulas You Should Know About 12

 

a = side of the triangle

b = base of the triangle

c = side of the triangle

 

11. How to find the volume of a cube ?

Ans. The volume of a cube is given as,

20 Important Geometry Formulas You Should Know About 13 where, a = edge of the cube

 

12. How to find the surface area of a cube ?

Ans. The surface area of a cube is given as,

20 Important Geometry Formulas You Should Know About 14 where, a = edge of the cube

 

13. How to find the surface area of a right circular cone ?

Ans. The surface area of a right circular cone is given as,

20 Important Geometry Formulas You Should Know About 15

 

r = radius

h = height

 

14. How to find the area of an equilateral triangle ?

Ans. The area of an equilateral triangle is given as,

20 Important Geometry Formulas You Should Know About 16 where, a = side of the equilateral triangle

 

15. How to find the area of an isosceles triangle ?

Ans. The area of an isosceles triangle is given as,

20 Important Geometry Formulas You Should Know About 17

b = base of the triangle

h = height of the triangle

 

16. How to find the area of a parallelogram ?

Ans. The area of a parallelogram is given as,

20 Important Geometry Formulas You Should Know About 18

 

b = base of the parallelogram

h = height of the parallelogram

 

17. How to find the area of a rhombus ?

Ans. The area of a rhombus is given as,

20 Important Geometry Formulas You Should Know About 19

p = length of diagonal 1

q = length of diagonal 2

 

18. How to find the volume of a cylinder ?

Ans. The volume of a cylinder is given as,

20 Important Geometry Formulas You Should Know About 20

 

r = radius of the cylinder

h = height of the cylinder

 

19. How to find the surface area of a cylinder ?

Ans. The surface area of a cylinder is given as,

20 Important Geometry Formulas You Should Know About 21

 

r = radius of the cylinder

h = height of the cylinder

 

20. How to find the area of a trapezium ?

Ans. The area of a trapezium is given as,

20 Important Geometry Formulas You Should Know About 22

a,b = bases of trapezium

h = height(perpendicular distance between a and b)

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