Question

A toy is a combination of a cylinder, hemisphere and a cone, each with radius $10cm$ as shown in the figure. Height of the conical part is $10cm$ and total height is $60cm$. Find the total surface area of the toy $(\pi =3.14,\sqrt{2}=1.41)$.

• A. $4382.74c{m}^2$
• B. $3582.74c{m}^2$
• C. $4882.74c{m}^2$
• D. $35982.74c{m}^2$

Answer 1

Answer: (B)

The correct option is C $3582.74c{m}^2$
Given, toy is combination of cylinder, hemisphere and cone with radius $10$ cm. Height of conical part is $10$ cm and total height is $60$ cm.