plis kak yang jawab dapat pahala amin no 25,26,27,28

25 . k = jumlah seluruh sisi
= 18 + 25 + 25 + 34 = 102 ( c )
26 . l 1 = s kali s
= 7 kali 7
= 49
l 2 = 1/2 kali ( a + b ) kali t
= 1/2 kali ( 7 + 12 ) kali 8
= 76
l 1 + l 2 = 49 + 76 = 125 ( c )