Tolong jawab nomer 36,37,38 plesss

36.
[tex] \frac{1}{2} \times (\pi \: {r}^{2} ) \\ \frac{1}{2} (\times 3.14 \times {20}^{2}) = \frac{1}{2} \times 1256 = 628[/tex]
37.
Luas persegi panjang = p x l =25 x 9 =225
Luas trapesium =1/2 (jumlah sisi sejajar) t
=1/2 (25+(25-14))14
=1/2(36)14
=252.
Luas keseluruhan =225 + 252=477

[tex]36. \: 2\pi \: r {}^{2} \\ 2 \times 3.14 \times 20 \times 20 = 2512 \\ 37. \: (25 \times 9) + (36 \times 14 \div 2) = \\ 225 + 252 = 477 \\ 38. \: 2 \div 2(48 + 24)= 72[/tex]