Panjang jari-jari alas kerucut = 7cm tingginya 24cm Hitung luasnya jika phi= 22/7...
istek
R = 7 cm t = 24 cm s^2 = r^2 + t^2 s^2 = 7^2+ 24^2 s^2 = 49 + 576 s = akar 625 s = 25 cm L = phi x r^2 + phi x r x s = 22/7 x 7^2 + 22/7 x 7 x 25 = 154 +550 = 704 cm^2 # maaf kalo salah
t = 24 cm
s^2 = r^2 + t^2
s^2 = 7^2+ 24^2
s^2 = 49 + 576
s = akar 625
s = 25 cm
L = phi x r^2 + phi x r x s
= 22/7 x 7^2 + 22/7 x 7 x 25
= 154 +550
= 704 cm^2
# maaf kalo salah