luas bangun datar berikut adalah? tolong pake cara y

(14+20) x15x1/2 = 34x15x1/2=17x15 = 225

Trapesium = L= (a+b)×t ÷ 2
= ( 14 + 20)× 15 ÷ 2
= 34 ×15
= 510 ÷ 2 = 255 cm2