Question

Please help me in this question.

Answer 1

Explanation:

(i) Area of ABCD = (base1+base2)*height/2

= (6+12)*4/2 = 36 cm2

(ii) Volume = Area of ABCD * length = 36 * 25 = 900 cm3

(iii) Total SA = Area of ABCD *2 + 25*5*2 + 6*25 + 12*25

= 72 + 250 + 150 + 300

= 772cm2