In the given fig. AP = 4 cm, BQ = 6 cm and AC = 9 cm. Find the semi perimeter of `Delta ABC`.

In Delta ABC , M and N are the midpoints of AB and AC respectively. If AB = 8 cm, AC = 7 cm and MN = 4.5 cm, find the perimeter of Delta ABC .

In the figure, find the perimeter of Delta ABC , if AP =12 cm.

In triangle ABC, P is mid-point of AB and Q is mid-point of AC. If AB = 9.6 cm, BC = 11 cm and AC = 11.2 , find the perimeter of the trapezium PBCQ.

ABC is a triangle in which AB = 40 cm, BC = 41 cm and AC = 9 cm. Then ortho-centre of Delta ABC lies________

In triangle ABC, given below, AB = 8 cm, BC = 6 cm and AC = 3 cm. Calculate the length of OC

triangle ABC - triangle DEF such that DE = 3 cm, EF = 2 cm, DF = 2.5 cm " and " BC = 4 cm. Find perimeter of triangle ABC .

In Delta ABC , AB = 20 cm, BC = 21 cm and the perimeter of Delta ABC = 70 cm. Find the area of Delta ABC using Heron's formula.

In triangle ABC, AB = 6 cm, AC = 8 cm, and BC = 9 cm . The length of median AD is :

In triangle ABC , AB = 6 cm, AC = 8 cm, and BC = 9 cm. The length of median AD is: