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According to NCERT solutions for Class 9 Maths chapter 13 exercise 13.2 ,How is the total surface area calculated from the lateral surface area and area of the circle?


Sumit Saini 22nd Dec, 2021
Answer (1)
Sumit Saini 22nd Dec, 2021

Solution :

The total surface area of a closed right circular cylinder is computed by adding the area of the lateral surface and the area of the two bases, according to NCERT solutions for Class 9 Maths chapter 13 exercise 13.2 .

TSA=CAS+2(Area of a circle)

= 2πrh+2π(r^2)

TSA=2πr(h+r)

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