TOLONG JAWAB YANG BENARMENGUNAKAN RUMUS

TOLONG JAWAB YANG BENARMENGUNAKAN RUMUS

Jawab:

Dik:

D = 28 cm

R = $frac{1}{2} times D$ = 14 cm

d = 14 cm

r = $frac{1}{2} times d$ = 7 cm

$t_{besar}$ = 50 cm

$t_{kecil}$ = 10 cm

$n=frac{V_b_e_s_a_r}{V_k_e_c_i_l} \n = frac{pi R^2t_b_e_s_a_r}{pi r^2t_k_e_c_i_l} \n = frac{R^2t_b_e_s_a_r}{r^2t_k_e_c_i_l} \n = frac{14^2 times 50}{7^2 times 10} \n = (frac{14}{7} )^2 times frac{50}{10}\n = (2)^2 times 5\n = 4 times 5 = 20 kali$

Semoga bermanfaat