Aduh duh lemes besti udh tau gk bisa masih di kasih pr,Tolongin kk kk yng cantik ama abang abang ganteng9+
Jawaban:
PERSEGI
1. L = 13×13 = 169 cm²
2. a. akar 64 = 8 cm
b. akar 100 = 10 cm
3. 25 persegi satuan
4. terlampir
5. La = 9×9 = 81 cm², Lb = 7×7 = 49 cm².
Selisihnya = La-Lb = 81-49 = 32 cm²
PERSEGI PANJANG
1. L = 28×13 = 364 cm²
2. a. l = 120÷20 = 6 cm
b. p = 133÷19 = 7 cm
3. 60 persegi satuan
4. terlampir
5. p = 18 cm
K = 2p+2l = 116 cm
K = 2(18) + 2l = 116
K = 36 + 2l = 116
2l = 116 - 36 = 80
2l = 80
l = 40 cm.
Maka, L = p×l = 18×40 = 720 cm²
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