bantu ya dari no. 19 samapi 24 jawab semua yq pliss ini buuh

Yang tahu aja yaa ^^

19. C. Trapesium

21. Luas segitiga
= 1/2 × a × t
= 1/2 × 14 × 12
= B. 84 cm^2

22. Luas 1/2 lingkaran
= 1/2 × phi × r^2
= 1/2 × 3,14 × 10 × 10
= 314/2 = B. 157 cm^2

23. Luas gabungan
= Luas persegi panjang + Luas segitiga
= ( p×l ) + ( 1/2×a×t )
= ( 4×8 ) + ( 1/2×9×4 )
= 32 + 18 = D. 50 cm^2

24 Luas taman × biaya/m^2
= ( 15 m × 15 m ) × 25.000/m^2
= 225 m^2 × 25.000/m^2
= A. Rp 5.625.000,00

Semoga membantu ^^

19. B. layang-layang
20. B. ii dan iv
21. B
[tex]l = \frac{a \times t}{2} \\ = \frac{14 \times 12}{2} \\ = \frac{168}{2} \\ 84[/tex]
22. B.
[tex] = \frac{\pi \times r \times r}{2} \\ = \frac{3.14 \times 10 \times 10}{2} \\ = 157 {cm}^{2} [/tex]
23. D.
[tex]l = p \times l \\ = 8 \times 4 \\ = 32 {cm}^{2} \\ l = \frac{a \times t}{2} \\ = \frac{4 \times 9}{2} \\ = 18 {cm}^{2} \\ l = 32 + 18 \\ = 50 {cm}^{2} [/tex]
24. A.
[tex]l = s \times s \\ = 15 \times 15 \\ = 225 \\ harga = 225 \times 25000 \\ = 5625000[/tex]