Mensuration Practice Test 9

Area of roof and ceiling = 2 (l × b)
= 2 (15 × 12)
= 360 m2
Area of four walls = area of floor and ceiling
Area of four walls = 360 m2
Curved surface area ⇒ 2 (lh + bh) = 360 m2
⇒ 2 (15h + 12h) = 360
54 h = 360
h =

360

54

= 6.66 m
Volume of Godown = L × b × h
= 15 × 12 × 6.6
= 1,199.9 approx.
= 1,200 m3