Question

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Answer 1

Answer:

d) 6 cm

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Answer 2

Answer:

Given:

The sides of the triangle are 5cm,4cm and 3cm.

As we know that,

$</strong><strong>S</strong><strong>emi \: perimeter \: </strong><strong>S</strong><strong> = \frac{a + b + c}{2}$

$</strong><strong>S</strong><strong> = \frac{3 + 4 + 5}{2}$

$</strong><strong>S</strong><strong> = \frac{12}{2}$

$</strong><strong>S</strong><strong> = 6cm$

So,The semi perimeter=6cm