perhatikan bangun datar diatas luas bangun tsb adlh

dik: sisi a = 25 cm ; sisi b = 13 cm ; t = 10 cm
dit: L

jawab : L trapesium = (a + b) × t /2
L= (25+13) × 10 / 2
L = 38 × 5 = 190 cm²

L=1/2*(a+c)*t
=1/2*(25+13)*10
=190 cm^2