Lsetengahlingkaran+persegipanjang+segitiga
Llingkaran=πr²=22/7.7.7=1/2.154= 77cm
Lpersegipanjang=pxl=20x14=280cm
Lsegitiga=1/2.a.t=1/2.10.14=70cm
77cm+280cm+70cm=427cm
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22/7 × 1/2 × 7 × 7 = 77
Persegi panjang
20×14 =280
Segitiga
1/2 × 10 × 14 = 70
Total 427
Lsetengahlingkaran+persegipanjang+segitiga
Llingkaran=πr²=22/7.7.7=1/2.154= 77cm
Lpersegipanjang=pxl=20x14=280cm
Lsegitiga=1/2.a.t=1/2.10.14=70cm
77cm+280cm+70cm=427cm