Question

solve this problem with the help of➡➡➡➡
no. 12​

Answer 1

Step-by-step explanation

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$perimeter = 18cm \\ \\ equal \: side = 5 \times \frac{3}{4} \\ \\ = \frac{23}{4} \\ \\ there \: are \: two \: equal \: side \\ \\ so \\ \\ 2 \times \frac{23}{4} \\ \\ = \frac{23}{2} \\ \\ hence \:put \: last \: side = x \\ \\ = 18 = \frac{23}{2} + x \\ \\ = \frac{18}{1} - \frac{23}{2} = x \\ \\ = \frac{36 - 23}{2} = x \\ \\ = \frac{13}{2} = x \: \: \: \: \: or \\ \\ 6 \times \frac{1}{2} =x \\ \\ hence \: last \: side = 6 \times \frac{1}{2}$

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Answer 2

Refer the attachment.