Question

A cuboid has total surface area of 100 m' and lateral surface area is 60 m Find the area of its top​

Answer 1

Answer: 20m² is the area of base

Step-by-step explanation:

the total surface area of cuboid = 2(lb+bh+hl)=100m²

lateral surface area of cuboid=2h(l+b)=50m²

so TSA =2h(l+b) + 2lb

so 100m²=60+2lb

100-60=2lb

40=2lb

40/2=lb

20=lb

Therefore, we get the solution 20m² is the area of base