name all formula in mensuration topic
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Perimeter of rectangle :- 2×(l+b)
Perimeter of square :- 4×side
Perimeter of triangle :- sum of all its three sides
Perimeter of rhombus :- 4×side
Area of rectangle :- l×b
Area of square :- side× side
Area of triangle :- 1/2×b×h
Area of equilateral triangle :- 1/2× (equal side) ^2 - (base) ^2
Circumference of circle :- 2πr
Area of circle :- πr^2
Area of semi circle :- 1/2×πr^2
Perimeter of square :- 4×side
Perimeter of triangle :- sum of all its three sides
Perimeter of rhombus :- 4×side
Area of rectangle :- l×b
Area of square :- side× side
Area of triangle :- 1/2×b×h
Area of equilateral triangle :- 1/2× (equal side) ^2 - (base) ^2
Circumference of circle :- 2πr
Area of circle :- πr^2
Area of semi circle :- 1/2×πr^2
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