Question

Tlong djwab ya....
bsok mau ngantar....

Answer 1

2.
a. luas=
154=22/7 r²
1078=22r²
r²=1078:22
r²=49
r=7

b. ingat phytagoras
t=√sisimiring²-alas²
=√25²-7²
=√625-49
=√576
=24

c. v= 1/3
=1/3.22/7.7.7.24
=8.22.7
=1232cm³