Question

Draw altitudes from P to QR for the following triangles. Also, draw altitudes from the other vertices.

i)

ii) Will an altitude always lie in the interior of a triangle ? 

iii) Can you think of a triangle in which the two altitudes of a triangle are two of its sides ?

Answer 1

i)

ii) An altitude need not necessarily be in the Interior of a triangle. 

iii) Yes. In a right triangle the two sides containing the right angle are the two altitudes of it.