Question

formula of all shapes​

Answer 1

Perimeter formula

Square 4 × side

Rectangle 2 × (length + width)

Parallelogram 2 × (side1 + side2)

Triangle side1 + side2 + side3

Regular n-polygon n × side

Circle 2 × pi × radius

Area formula

Square side2

Rectangle length × width

Parallelogram base × height

Triangle base × height / 2

Regular n-polygon (1/4) × n × side2 × cot(pi/n)

Trapezoid height × (base1 + base2) / 2

Circle pi × radius2

Cube (surface) 6 × side2

Sphere (surface) 4 × pi × radius2

Cylinder (surface of side) perimeter of circle × height

2 × pi × radius × height

Cylinder (whole surface) Areas of top and bottom circles + Area of the side

2(pi × radius2) + 2 × pi × radius × height

Cone (surface) pi × radius × side

Volume formula

Cube side3

Rectangular Prism side1 × side2 × side3

Sphere (4/3) × pi × radius

Cylinder pi × radius2 × height

Cone (1/3) × pi × radius2 × height

Hope it helps youuuu

Answer 2

Answer:

1. cube side³,
2. cuboid=length×width×height,
3. square=side×side,
4. triangle=1/2×base×height,
5. trapezium=1/2 (a+b)×height
6. parallelogram=base×height
7. Area of a circle=πr²
8. circumference=2πD
9. cylinder=2πrh