tolong ya kak pakai caranya mau di kumpulin

Jawab:
L gabungan = 71,75 cm ^2
Penjelasan dengan langkah-langkah:
a = 7cm
t = 5cm
d = 7cm
π = 22/7
L 1/2 lingkaran = 1/2 × 1/4×π×d^2 = 1/2 × 1/4 × 22/7 × 7 × 7 = 1/4 × 77 = 19,25 cm^2
L segitiga = 1/2 × a × t = 1/2 × 7 × 5 = 1/2 × 35 = 17,5 cm^2
L jajar genjang = a × t = 7 × 5 = 35 cm^2
L gabungan = 19,25 + 17,5 + 35 = 71,75 cm^2
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