the length and breadth of a rectangle are 12 cm and 5 cm respectively find the length of its diagonal
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Answered by
6
diagonal = √(12^2+5^2)
=√(144+25) =√169 = 13 cm
=√(144+25) =√169 = 13 cm
Answered by
13
Given AB=12cmAB=12cm
BC=5cmBC=5cm
Find ACAC
We know that by Pythagoras theorem
AC2=AB2+BC2AC2=AB2+BC2
=122+52=122+52
=144+25=144+25
=169=169
AC=169−−−√AC=169
=13=13
Hence the length of the diagonal is 13cm13cm
Answer : 13 cm
BC=5cmBC=5cm
Find ACAC
We know that by Pythagoras theorem
AC2=AB2+BC2AC2=AB2+BC2
=122+52=122+52
=144+25=144+25
=169=169
AC=169−−−√AC=169
=13=13
Hence the length of the diagonal is 13cm13cm
Answer : 13 cm
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