• Luas segitiga
t.segi3 = 36-20
= 16 cm
Luas = 1/2.a.t
= 1/2.40.16
= 320 cm^2
• Luas persegi panjang
p x l = 20 x 40
= 800 cm^2
Luas gabungan = 320+800
= 1.120 cm^2
Pembahasan
alas = 40 tinggi = 36-20=16
Luas segitiga = 1/2×a×t
l= 1/2×40×16
l= 320cm²
Luas persegi panjang = p×l
l= 40×20
l= 800cm²
luas gabungan= 320cm²+800cm²= 1.120cm²
tuh jawaban ku
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• Luas segitiga
t.segi3 = 36-20
= 16 cm
Luas = 1/2.a.t
= 1/2.40.16
= 320 cm^2
• Luas persegi panjang
p x l = 20 x 40
= 800 cm^2
Luas gabungan = 320+800
= 1.120 cm^2
Pembahasan
alas = 40 tinggi = 36-20=16
Luas segitiga = 1/2×a×t
l= 1/2×40×16
l= 320cm²
Luas persegi panjang = p×l
l= 40×20
l= 800cm²
luas gabungan= 320cm²+800cm²= 1.120cm²
tuh jawaban ku