Tolongin dong nomor 29 sama 30 Makasih

29.
a. Luas = 22/7 ×14 × 14
=22×2 (soalnya 14 udah dibagi 7) ×14
=616cm²
b. Keliling
K=2×22/7×14
=2×22×2
=88cm²

30.
a. L = 22/7 ×21×21
=22×3×21
=1386 cm²
b. K = 2×22/7×21
=2×22×3
=132 cm