Question

Easy math formulas for 8

Answer 1

formula for 8th standard
1 (a+b)square = a square + b square+ 2× ab
2 (a-b) square = a square + b square - 2× ab
3 a square - b square = (a+b) (a-b)
4 volume of cube = side cube
5 surface area of cube= 6× side square
6 volume of cuboid= l× b×h
7 surface area of cuboid = 2(lb+bh+hl)
8 area of trapeziem = 1/2×(sum of prallell side)h
9 area of triangle = 1/2×lenght × breadth
10 area of four walls = 2×(l+b)× h
11 volume of cylinder = area of base × hieght
12 letral surface area= circumfrence of base × hieght
13 total surface area = 2(area of base)+(area of leteral surface)