Question

(ii) In APQR, PQ = 3x, QR = 4x, PR = 5x and the perimeter of the triangle is 72 cm. The value of x is (a) 18 cm (6) 24 cm (c) 6 cm (d) 30 cm




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Answer 1

C) 6cm

PQ + QR + PR = 72

3x + 4x + 5x = 72

12x = 72

x = 6

Answer 2

Answer:

Option C

Step-by-step explanation:

3x + 4x + 5x = 72 cm

12x = 72 cm

x = $\frac{72 cm}{12}$

x = 6 cm = C