The Triangle an...

In $$\Delta PQR$$, if $$\angle P=60^{o}$$, and $$\angle Q=40^{o}$$, then the exterior angle formed by producing $$QR$$ is equal to

In a right-angled triangle $$ABC$$, if angle $$B = 90^o$$, then which of the following is true?

Write the correct answer from the given four options.
The hypotenuse of a right triangle with its legs of lengths $$3x \times 4x$$ is

The measures of $$\angle x$$ and $$\angle y$$ in figure are respectively

If we join a vertex to a point on opposite side, which divides that side in the ratio $$1:1$$, then what is the special name of that line segment?

How many altitudes does a triangle have?

Which of the following can be the length of the third side of triangle whose two sides measure $$18 cm$$ and $$14 cm $$?

Which of the following figures will have its altitude outside the triangle?

If one angle of triangle is equal to the sum of the other two angles then the triangle is 

In given $$\triangle ABC$$, AE, BF and CD are