Question

Area and perimeter of

Rectangle

Sqaure

Triangle

Right triangle

Equilateral
Triangle

Isosceles
Triangle

Parallelogram

Rhombus

Trapezium

Circle

Answer 1

assuming you are looking for the formulas

Explanation:

Area and perimeter of

Rectangle

• Area = length × width.

• Perimeter = 2 x (length + width)

Square

• Area = l²

• Perimeter = 4 × side

Triangle

• Area = 1/2 bh

• Perimeter = a + b + c, where a, b, and c are the sides of the triangle

Right triangle

• Area = 1/2 bh or leg by leg divided 2 (the two legs that form the right angle)
• Perimeter = a + b + c

Equilateral Triangle

• Area = 1/2 bh

• Perimeter side x 3

Isosceles Triangle

• Area = 1/2 bh

• Perimeter = 2a + b

Parallelogram

• Area = b·h

• Perimeter = 2(a+b)

Rhombus

• Area = base × height or (diagonal1 × diagonal2)/2

• Perimeter = 4a, where 'a' denotes the length of the side of a rhombus.

Trapezium

• Area = ½ (a + b) h

• Perimeter = a + b + c + d (sum of all sides)

Circle

• Area = π × r2

• Perimeter (circumference) = 2πr