1.

Δ lf the perimeter of ΔABC is 10cm, calculate the perimeter of triangle PQR?

Answer»

Perimeter of ΔPQR = 2 × 10 = 20

One side = 20/3

Area of ΔPQR = \(A=\frac{\sqrt{3}}{4}a^2=\frac{\sqrt{3}}{4}(\frac{20}{3})^2=\frac{100}{3\sqrt{3}}\)



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