A hot-water bottle model is a cylinder (radius r, height h) with a hemisphere of radius r on EACH flat end, and an additional small cylindrical neck is ignored. Express the total surface area. If r = 7 cm and h = 14 cm, find the value in cm^2 (π = 22/7).

Question

Accepted Answer

1232. Surface = 2*π*r*h + 4*π*r^2 = 2*(22/7)*7*14 + 4*(22/7)*49 = 616 + 616 = 1232 cm^2.

A hot-water bottle model is a cylinder (radius $r$ , height h) with a hemisphere of radius $r$ on EACH flat end, and an additional small cylindrical neck is ignored. Express the total surface area. If $r = 7$ cm and $h = 14$ cm, find the value in $cm^{2}$ (π = $\frac{22}{7}$ ).

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More Class 10 Surface Area of Combined Solids practice

A hot-water bottle model is a cylinder (radius r, height h) with a hemisphere of radius r on EACH flat end, and an additional small cylindrical neck is ignored. Express the total surface area. If r=7 cm and h=14 cm, find the value in cm2 (π = 722​).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Surface Area of Combined Solids practice

A hot-water bottle model is a cylinder (radius $r$ , height h) with a hemisphere of radius $r$ on EACH flat end, and an additional small cylindrical neck is ignored. Express the total surface area. If $r = 7$ cm and $h = 14$ cm, find the value in $cm^{2}$ (π = $\frac{22}{7}$ ).