tolong dong pake cara yah

misal
x = tinggi trapesium

x*2 = 13*2 - 5*2
x*2 = 169 - 25
x*2 = 144
x = √144
x = 12 cm

Luas 2 trapesium = 2( a + b x t / 2 )
= 2( 10 + 20 x 12/2)
= 10 + 20 x 12
= 360cm*2
Luas alas = 12 x 20
= 240cm*2
Luas penutup = 10 x 12
= 120cm*2
Luas 2 sisi miring = 2(13 x 12)
= 2(156)
= 312
Luas permukaan = 360+240+120+312
= 1.032
jawaban = b.1032