A solid cuboid is 15cmx12cmx10cm. From each of its vertex cube of edge 2 cm is cut out. Find the % change in its TSA.
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Answer:
900 cm^2
Step-by-step explanation:
lateral surface area of cuboid=2(l+b)h
=2(15+12)10
=2(27)10
=2×270
=540 cm^2
we also know that
lateral surface area = 2lb+2lh+2hb. =2×15×12+2×15×10+2×10×12
=360+300+240
=900cm^2
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