Question

Luas permukaan tabung 748 .tingginya 10cm(phi:22/7) . tentukan jarijari tabung =
jawabya pleaseee cepeet yaa;;)

Answer 1

Lptabung=2.phi.r.r.t.phi.d
748=2.22/7.r2.22/7.2.r
748=44/7.22/7.r2.2.r
748=19,75.2.r3
37,87=2.r3
18.936=r3
3=r

saya buletin...

Answer 2

L.sisi tbung=2лr(r+t)
748 =2Ⅹ22/7Ⅹr(r+10)
r(r+10) =748/44/7=748Ⅹ44/7=119
r²+10r=119
r²+10r-119=0
(r-7) (r+17)=0
r-7=0|r+17=0
r=7 |r=-17
✔ ❌