Nomer 2dan4 pakek cara ya

(luas trapesium × 2)/tinggi = ( jmlh sisi sejajar )
( 119 × 2)/7 = 19 + x
238/7 = 19 + x
34 - 19 = x
15 cm = x

luas trapesium = 1/2 × jmlh sisi sejajar × tinggi
= 1/2 × (25 + 26) × 12
= 6 × 51 = 301 cm^2