Tolong dijawab ya besok dikumpul please

2. dik: D=42 cm
t trapesium=r=21
L trapesium=(58+42)x21/2
=1050cm^2
L lingkaran=22/7x21x21=1386cm^2

L arsiran=1386-1050=336cm^2

3. L alas=25x20/2=250cm^2
L prisma=l alas x tinggi =250x42=10500cm^3

4. V=πxr^2xt
3388=22/7 x r^2x22
3388/22=22/7xr^2
154=22/7xr^2
r^2=154x7/22
r^2=49
r=√49=7

5. L1=18x6=108
L2=18x9=162
L3=6x9=54
L permukaan=(2x108)+(2x162)+(2x54)=648cm^2