Question

three cubes of edge 5cm are joined together.find the volume and T.S.A. of resultant solid.​

Answer 1

Answer:

Surface area of cuboid= 2(l×b)+2(b×h)+2(h×l)

According to question,

l=5+5+5=15cm

b=d=5cm

Now put the values in the formula,

Area= 2(15×5)+2(5×5)+2(5×15)= 350cm2.