Name the types of following triangles :
`Delta` ABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.

Name the types of following triangles : (a) Triangle with lengths of sides 7 cm, 8 cm and 9 cm. (b) DeltaABC with AB=8.7 cm, AC=7 cm and BC =6cm. (c) Delta PQR such that PQ=QR=PR=5cm. (d) Delta m

Find the length of the altitude AL of an isoceles triangle ABC, where AB = AC = 5 cm and BC = 8 cm.

If D and E are respectively the midpoints of the sides AB and BC of triangle ABC in which AB = 7.2 cm, BC = 9.8 cm and AC = 3.6 cm then determine the length of DE.

Can we construct a triangle ABC in which AB=3 cm, BC=4 cm and AC=8 cm ?

Arrange the angles of the triangle from smallest to largest in the triangle, where the sides are AB = 7 cm, AC = 8 cm, and BC = 9 cm.

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

Construct a triangle ABC in which BC = 7cm, angleB=75^@ and AB + AC = 13 cm.

In Delta ABC , AB=6 sqrt(3) cm , AC=12 cm and BC=6 cm . Then angle B is