(4) Find the ratio of TSA of hemisphere to the TSA of sphere they both have the same radius - Maths - Surface Areas and Volumes

Question

(4) Find the ratio of TSA of hemisphere to the TSA of sphere they
both have the same radius
(5) The floor of a rectangular hall has perimeter 250 m the cost of
painting the walls at the rate of 210 per m2 and Rs 2400
Find the height of the hall

Shruti Tyagi · Accepted Answer

Dear Student,

Assuming the question is from NCERT exercise 13 1 Please find below
the solution

<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5a67486fc721b%20jpg"
style="width: 735px; height: 273px;">
Regards,

(4) Find the ratio of TSA of hemisphere to the TSA of sphere they both have the same radius. (5) The floor of a rectangular hall has perimeter 250 m the cost of painting the walls at the rate of 210 per m2 and Rs. 2400. Find the height of the hall.

(4) Find the ratio of TSA of hemisphere to the TSA of sphere they both have the same radius.
(5) The floor of a rectangular hall has perimeter 250 m the cost of painting the walls at the rate of 210 per m² and Rs. 2400. Find the height of the hall.