find the LSA and TSA of the cylinder with the following dimensions radius 70 cm height 1 metre
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find the LSA and TSA of the cylinder with the following dimensions radius 70 cm height 1 metre
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we know ,
→ L.S.A = 2πrh
→ L.S.A = 2 × 22/7 × 70 × 100
→ L.S.A = 2 × 22 × 10 × 100
→ L.S.A = 2 × 22 × 1000
→ L.S.A = 44 × 1000
→ L.S.A = 44000cm²
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Now,
→ T.S.A = 2πr ( r + h )
→ T.S.A = 2 × 22/7 × 70 × ( 70 + 100 )
→ T.S.A = 2 × 22 × 10 × 170
→ T.S.A = 44 × 1700
→ T.S.A = 74800cm²