$△ P Q R \sim △ A B C, P Q = 4 c m, Q R = 6 c m$ and $P R = 5 c m$ . If $A B = 8 c m$ then find the perimeter of $△ A B C$ .

15 c m

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30 c m

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20 c m

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25 c m

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Solution

The correct option is B $30 c m$
$\begin{matrix} \frac{4}{15} = \frac{8}{p e r i m e t e r o f Δ A B C} P = (A B C) = \frac{8 \times 15}{4} = 30 \end{matrix}$

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△PQR∼△ABC,PQ=4 cm,QR=6 cm and PR=5 cm. If AB=8 cm then find the perimeter of △ABC.

The correct option is B 30 cm415=8perimeterofΔABCP=(ABC)=8×154=30

$△ P Q R \sim △ A B C, P Q = 4 c m, Q R = 6 c m$ and $P R = 5 c m$ . If $A B = 8 c m$ then find the perimeter of $△ A B C$ .

The correct option is B $30 c m$
$\begin{matrix} \frac{4}{15} = \frac{8}{p e r i m e t e r o f Δ A B C} P = (A B C) = \frac{8 \times 15}{4} = 30 \end{matrix}$