Question

volume of acone is 753. 60cm. the radius of its base is 12 cm then complete the followings activity to find the heught of the cone​

Answer 1

Answer:

Volume = 753.60 cm3 Radius (r) = 12 cm Height (h) = ? Volume of cone = 13πr2h13πr2h 753.60 cm3 = 13×227×12cm×12cm×h13×227×12cm×12cm×h 753.60cm3×3×722×12×12cm2753.60cm3×3×722×12×12cm2 = h 15825.6cm3168=h15825.6cm3168=h h = 5 cm

Answer 2

Explanation:

vol. of cone = 753.6 cm³

radius = 12 cm

$vol. \: of \: a \: cone \: = \frac{1}{3} \pi {r}^{2} h \\ 753.6= \frac{1}{3} \pi ({12}^{2} )h \\ \frac{753.6 \times 3}{12 \times 12} = \pi \: h \\ \frac{753.6}{4 \times 12} = \pi \: h \: \\ \frac{15 .7}{\pi} = h \\ h = 4.99 \: cm \:$

so hight is 4.99 cm or 5 cm (approx )