The ratio of length, breadth and height of a cube is 6:5:4. The total
surface area of the cube is 33300 cm². The volume of cuboid is :-
(1)45000 cu.cm.
(3)455000 cu. cm.
(2) 405000 cu.cm.
(4)415000 cu. cm.
Answers
Answered by
0
Answer:
l : b : h = 6 : 5 : 4
Let l = 6x, b= 5x,h= 4x
Total surface area=2(lb + bh + lh) = 33300 sq.cm
2(30x^2 +20x^2 + 24x^2) = 33300
2 * 74x^2 = 33300
x^2 = 33300/(2*74)
x^2 = 225
x = 15
l = 6*15 = 90
b= 5*15 = 75
h = 4*15 = 60
Volume= l*b*h = 90*75*60 = 405000 cu.cm
option (2)
Similar questions