pake cara ya nanti ku kasih poin
No. 6
Keliling = 82 cm
lebar = 12 cm
panjang = ?
·
→ 2p = k - 2l
→ 2p = 82 - 2(12) cm
→ 2p = 82 - 24 cm
→ 2p = 58 cm
→ p = 29 cm
No. 7
Luas = 24 cm²
panjang = 8 cm
lebar = ?
·
→ l = L ÷ p
→ l = 24 cm² ÷ 8 cm
→ l = 3 cm
No. 8
sisi persegi = 15 cm
Luas = ?
·
→ L = s × s
→ L = 15 cm × 15 cm
→ L = 225 cm²
[tex]\purple{\boxed{\blue{\boxed{\green{\star{\orange{\ \: \: \mathcal{JK} \: \: \: {\green{\star}}}}}}}}} [/tex]
No.6
- K = 82 cm
- L = 12 cm
- P = ?
- 2P = k - 2l
- 2P = 82 - 2(12) cm
- 2P = 82 - 24 cm
- 2P = 58 cm
- P = 29 cm
No.7
- L = 24 cm²
- P = 8 cm
- Lebar = ?
- l = L ÷ p
- l = 24 cm² ÷ 8 cm
- l = 3 cm
No.8
- S = 15 cm
- Luas = ?
- L = s × s
- L = 15 cm × 15 cm
- L = 225 cm²
