Rumus
L=p×l
P=✓(d²-l²)
keterangan
L=Luas
P=Panjang
d=diagonal
l=lebar
Diketahui:
d=50cm
l=30cm
Ditanya luas...?
P=√(d²-l²)
P=√(50²-30²)
P=√(2500-900)
P=√(1600)
P=40 cm
L=40×30
L=1200 cm²
jawaban: A. 1200 cm²
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Rumus
L=p×l
P=✓(d²-l²)
keterangan
L=Luas
P=Panjang
d=diagonal
l=lebar
Diketahui:
d=50cm
l=30cm
Ditanya luas...?
P=√(d²-l²)
P=√(50²-30²)
P=√(2500-900)
P=√(1600)
P=40 cm
L=p×l
L=40×30
L=1200 cm²
jawaban: A. 1200 cm²