Question

The surface area of cuboid 15cm broad and 10cm high is 1300cm square. Find its length

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

length = 20 cm

Step-by-step explanation:

Given:-

Breadth = 15cm

Height = 10cm

To Find :-

Length = x cm

Solution :-

Surface Area = 1300cm

Total Surface Area of Cuboid = 2(lb+bh+lh)

1300 cm^2 = 2(15x + 150 + 10x)

1300cm^2 = 2(25x + 150)

1300cm^2 = 50x + 300

1300 - 300 = 50x

1000 = 50x

x = 1000/50

x = 20