2013 · Q60
A conical cap has base diameter 24 cm and height 16 cm. Cost of painting at 70 paise per sq cm?
Elementary MathematicsMensuration
- A520
- B524
- C528
- D532
Explanation
Slant=20; π×12×20=240π≈754... cost=528. Answer C.
A conical cap has base diameter 24 cm and height 16 cm. Cost of painting at 70 paise per sq cm?
Explanation
Slant=20; π×12×20=240π≈754... cost=528. Answer C.