Question

♥️♥️please anyone solve my question number 12 and 13.. ♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Answer 1

here you go ☆☆

12.
▪CSA = 1210cm^2
▪circumference of base = 110


▪$=2\pi \: r \\ 110 = 2 \times \frac{22}{7} \times r$
▪$r = 110 \times \frac{7}{44}$
▪$r = 17.5cm$

▪$2\pi \: r \: h \\ 1210= 2 \times \frac{22}{7} \times 17.5 \times h$
▪$h = 1210 \times \frac{7}{22} \times \frac{1}{17.5} \times \frac{1}{2}$

□h = 11 cm....

□now volume :-

▪$\pi \: {r}^{2} \: h \\ \frac{22}{7} \times 17.5 \times 11 \\ 605 {cm}^{3}$

hope it helps....:)