Tolong kakak jawab no 24 dan 22 pilz besok dikumpul -_- plis pakai cara
22. r = 7 cm
L = π.r²
= 22/7 . 7²
= 22/7 . 49
= 22 . 7
L = 154 cm²
24. t = 25 cm
s = 14 cm
Lp = Lp I + Lp II
^ Lp I = 5 . s²
= 5 . 14²
= 5 . 196
Lp I = 980 cm²
^ Lp II = 4 + (1/2 . s . t)
= 2 . 14 . 25
= 28 . 25
Lp II = 700 cm²
Lp = Lp I + Lp II
= 980 + 700
Lp = 1,680