Question

If length breadth and surface area of a cuboid are 15 cm 10 cm 1300sq. find its height .​

Answer 1

Step-by-step explanation:

Sirface area = 2(lb+bh+hl)

1300 = 2(15×10+10h+15h)

1300÷2 =(150+25h)

650=150+25h

25h=650–150

25h = 500

h=500/25

h = 20

Answer 2

Answer:

Height = 20cm

Step-by-step explanation:

Let the height be x then

Surface area = 2(lb + lh + bh)

=> 2(150 + 15x + 10x) = 1300

=> 25x + 150 = 650

=> 25x = 500

=> x = 20