Question

Any Tricks for surafce areas and voluke class 10

Answer 1

if we learn short trick in class 10th then it prove harmful for us so according to me you should not try short trick for this type of formula because it's necessary in our earlier classes

Answer 2

In surface area and volumes, we have to multiply by π several times.
it's value is 22/7, can be broken into 11*2/7 and there is a trick of multiplying by 11.
like the number is 576*π
write it as
576*22/7
576*2*11/7
1152*11/7
Now to multiply by 11
write the number as
1 at first and 2 at last and sum of adjacent numbers inside like
12672 and that's the multiplication.
Divide it by 7 now.
It takes very less time, I have checked it.