10. The figure shows a metal cylinder of base radius 4 cm and height 6 cm. 10 such cylinders are melted and recast into a bigger metal cylinder of
height 15 cm.
(a) Find the base radius of the bigger metal cylinder.
(b) Amy claims that the total surface area has decreased by 432pie cm?
after the recast. Do you agree? Explain your answer.

step-by-step explanation:

it would open into a square depending on the type of envelope i’m not sure about the second part

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

you have to wait a while to reward brainliest if only one person answers. if 2 people answer there should be a "mark brainliest" on their question.

i cant fully remember all of the ranks, here are the ones i remember.

hand, ambitous, ace, genius.