Question

The total surface area of a cuboid of length 6 m and breadth 5 m is 126 sq. m. find its height

Answer 1

Answer:

Step-by-step explanation: length= 6m

breadth= 5m

TSA of cuboid= 126sq.m

To find: height of cuboid

Proof:

TSA = 2(lb+bh+hl)

126  = 2(6×5 + 5×h + h×6)

126  = 2(30 + 5h + 6h)

126/2= 30 + 11h

63 - 30 = 11h

33 = 11h

33/11 = h

3 = h

 •

•   • height of the cuboid is 3m.

Answer 2

Answer:

Step-by-step explanation:TSA OF CUBOID=126m square

LENGTH=6m

BREADTH=5m

HEIGHT=?

TSA OF CUBOID =2(lb+bh+lh

126=2(6*5+5*h+6*h)

126=2(30+5h+6h)

126=2(30+11h)

126=60+22h

22h=126-60

22h=66

h=66/22=3

Therefore h=3m

I hope this will be helpful......