Question

50 circular plates each of radius 7 and thickness 0.5 cm are placed one above the other to form a right circular cylinder fund the total surface area​

Answer 1

Answer:

r = 14 h =50×0.5 =25

TSA= 2PIE r(r+h)

: 2*22/7*7*(7+25)

:2*22*32

:1408cm square

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Answer 2

Step-by-step explanation:

the formula of surface area of a right circular cylinder is 2Πrh.Here r is the radius of cylinder which is same of the ciruclar plate and the h is width of the plate ×no.of plates=>0.5×50 cm bcz thats what gives the height of the right circular cylinder logically.

now surface area is given by

2Πrh

=2×22/7×7×0.5×50

=2×22×25

=1100cm²

hope u get it right!