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If 3 sides of a triangle are of length 16 cm, 12 cm and 13 cm, then which type of triangle is this ?

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Since, `12+13 gt 16`
`:.` Triangle is possible.
Now, `("longest side")^(2)=(16)^(2)=256`
and sum of squares of other sides `=(12)^(2)+(13)^(2)=144+169=313`
Since `("longest side")^(2) lt` sum of squares of other sides
`:.` It is an acute angled triangle.
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