Triangles Test ...

If straight-line divides two sides of a triangle proportionally then the straight line is parallel to the third side is called

The corresponding altitudes of two similar triangles are $$9\,cm$$ and $$15\,cm$$ respectively then the ratio between their areas.

Area of similar triangles are proportional to

In figure, $$DE\parallel BC$$, $$AD=4cm,DB=6cm$$ and $$AE=5cm$$ then $$EC$$ will be:

If in $$\triangle ABC$$ and $$\triangle DEF$$, $$\angle A={50}^{o}$$, $$\angle {B}={70}^{o}$$, $$\angle {C}={60}^{o}$$, $$\angle D={60}^{o}$$, $$\angle E={70}^{o}$$ and $$\angle F={50}^{o}$$ then which one is correct?

If $$\triangle ABC\sim \triangle DEF$$ and $$DE=8cm,AB=10cm$$ then the Ratio of $$ar(\triangle ABC)$$ to $$ar(\triangle DEF)=$$

$$\triangle ABC$$ and $$\triangle PQR$$ are two similar triangles whose areas are $$100{cm}^{2}$$ and $$144{cm}^{2}$$ and height of $$\triangle ABC$$ is $$6cm$$ then height of $$\triangle PQR$$ will be:

The point $$D$$ and $$E$$ lies on sides $$AB$$ and $$AC$$ of $$\triangle ABC$$ such that $$DE\parallel BC$$ and $$AD=8cm,AB=12cm$$ and $$AE=12cm$$, then $$CE$$ will be:

In figure, if $$DE\parallel AB$$ then $$AD=2cm$$, $$DC=3cm$$ and $$BE=3cm$$ and then value of $$CE$$

In $$\triangle \text{ABC}$$ if $$\text{AB=5 cm, BC=12 cm}$$ and $$\text{AC=13 cm}$$, then $$\angle \text{B}$$ will be: