Question

Write all the the identities and formulas of mensuration​

Answer 1

Answer:

Shapes

Equilateral triangle Area= (√3/4) × a2

Perimeter=3a

Right Angle Triangle Area= ½ × b × h

Perimeter = b + hypotenuse + h

Rhombus Area = ½ × d1 × d2

Perimeter = 4 × side

Parallelogram Area=b × h

Perimeter = 2(l+b)

Circle πr2 Area = (πr2)/2 (for semi-circle)

Perimeter = 2πr R(π+2 (for semi-circle)