In the given figure- -ABC is congruent to -PQR- What is the perimeter of -ABC-

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Standard IX

Mathematics

Perimeter

In the given ...

Question

In the given figure, ΔABC is congruent to ΔPQR.

What is the perimeter of ΔABC?

18 cm

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19 cm

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20 cm

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21 cm

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Solution

The correct option is C
20 cm

It is given that ΔABC is congruent to ΔPQR.

Therefore, by CPCT, we get:

AB = PQ, BC = QR, and AC = PR

∴ AB = 5 cm and BC = 8 cm

Perimeter of ΔABC = AB + BC + AC

= (5 + 8 + 7) cm

= 20 cm

Thus, the perimeter of ΔABC is 20 cm.

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In the given figure, ΔABC is congruent to ΔPQR. What is the perimeter of ΔABC?

The correct option is C 20 cmIt is given that ΔABC is congruent to ΔPQR. Therefore, by CPCT, we get: AB = PQ, BC = QR, and AC = PR ∴ AB = 5 cm and BC = 8 cm Perimeter of ΔABC = AB + BC + AC = (5 + 8 + 7) cm = 20 cm Thus, the perimeter of ΔABC is 20 cm.

In the given figure, ΔABC is congruent to ΔPQR.

What is the perimeter of ΔABC?

The correct option is C
20 cm

It is given that ΔABC is congruent to ΔPQR.

Therefore, by CPCT, we get:

AB = PQ, BC = QR, and AC = PR

∴ AB = 5 cm and BC = 8 cm

Perimeter of ΔABC = AB + BC + AC

= (5 + 8 + 7) cm

= 20 cm

Thus, the perimeter of ΔABC is 20 cm.