Hello
In this question - https://www.teachoo.com/1894 /551/Ex-13.1--9---A-wooden- article-was-made-by-scooping- out-a/category/Ex-13.1/
For surface area
Imagine yourself touching the figure. What surface can you feel?
You can feel the curved part of the cylinder. The top curved part of the hemisphere and the bottom curved part of the hemisphere.
So, you can feel Curved Surface Area of Cylinder + CSA of Top Hemisphere + CSA of Bottom Hemisphere
Written on Dec. 11, 2017, 10:02 a.m.