the Length breadth and height of A cubical ratio are in the ratio of 7 ratio 6 ratio 5 if the surface area of the cuboid is the 1926 CM square find the volume
Answers
Answered by
3
Answer:
l:b:h=7:6:5
TSA (Cuboid)= 2(lb+bh+hl)
1926= 2(7x×6x+6x×5x+5x×7x)
= 2(42x²+30x²+35x²)
1926=2 (107x²)
107x²=963
x²=9
x=3
Length= 3×7=21 cm
Breadth= 3×6=18 cm
Height= 3×5= 15 cm
Volume= lbh
=21×18×15
=5670 cm³
∴Volume is 5670 cm³
Similar questions