Question

Two triangles are said to be similar, if the corresponding sides are___ and the corresponding angles are___.

• A. equal, equal
• B. proportional, equal
• C. equal, proportional
• D. proportional, proportional

Answer 1

The correct option is B proportional, equal


When the corresponding sides of two triangles are proportional and the corresponding angles are equal, the triangles are said to be similar.
In the above pair of triangles $\angle A=\angle P,\angle B=\angle Qand\angle C=\angle Rand\frac{PQ}{AB}=\frac{QR}{BC}=\frac{PR}{AC}.$
So we can say that $△$ ABC $\sim$ $△$PQR