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Alternate Angles of Parallel Lines and Its Transversal

In the given ...

Question

In the given figure, ∠1 = 60° and ∠2 = ${(\frac{2}{3})}^{r d}$ of a right angle. Prove that l || m.

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Solution

The figure is given as follow:

It is given that

Also,

Thus we have

But these are the pair of corresponding angles.

Thus

Hence proved.

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Alternate Angles of Parallel Lines and Its Transversal

Standard VII Mathematics

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