tolong jawab no 24,25&26 ya

24. ½ x d1 x d2 = ½ x (15+15) x (24+12)
= ½ x 30 x 36
= 540 cm²

25. L ¼ lingkaran =
[tex] \frac{1}{4} \pi \: {r}^{2} [/tex]
[tex] \frac{1}{4} \times \frac{22}{7} \times {21}^{2} [/tex]
[tex]346.5[/tex]
maaf yg nomer 26 tidak tahu