Question

Tolong........................................................................................................................bantuiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiinnnnnnnnnnnnnnnnnn...................
gk ngerttiiiiiiiiiiiiii!!!!!!!!!!!!! plissss guyss help me

Answer 1

Ada dua trapesium, 2 persegi dan 2 segitiga
luas trapesium = 1/2 (30+20) x 20 = 500
luas 2 trapesium = 2 x 500 = 1000
luas persegi = 20 x 20 = 400
luas 2 persegi = 400 x 2 = 800
luas segitiga tidur atas = 1/2 x 20 x 20 = 200
luas segitiga berdiri
= 1/2 x 20√2 x 10√3 = 100√6
Luas permukaan = 1000 + 800 + 200 + 100√6
  = 2000 + 100√6
= 100( 20+√6) jawaban B