Question

maths formulas for class eighth class​

Answer 1

Answer:

(a + b)2 =a2 + 2ab + b2

(a+b)(a-b)= a2 + 2ab - b2

volume of cube is s3

total surface area of cube is 6s square

Circular surface area of cube is 4s square

Total surface area of cuboid is 2(lb+hl+bh)

circular surface area of cuboid is 2+(l+b)h

volume of cylinder is πr2h

volume of cuboid is l×b×h