If two triangles ABC and PQR are similar (ΔABC ∼ ΔPQR) , then their corresponding sides are proportional and corresponding angles are equal i.e. PQ/AB = QR/BC = RP/CA.
The ratio of areas of similar triangles is the square of the ratio of their sides i.e. Area PQR / Area ABC = (PQ/AB)2
The ratio of perimeters of similar triangles is the ratio of their sides i.e.
Perimeter PQR / Perimeter ABC = PQ/AB
The ratio of areas of similar triangles is the square of the ratio of their sides i.e. Area PQR / Area ABC = (PQ/AB)2
The ratio of perimeters of similar triangles is the ratio of their sides i.e.
Perimeter PQR / Perimeter ABC = PQ/AB
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