In `Delta ABC, AB = BC ` then it is .......triangle .

In /_\ABC , AB =AC =BC then it is ……….triangle .

In Delta ABC , XY || BC and XY divides the triangle into two parts of equal area. Find BX : AB . [Hint : ABC = 2 Delta AXY ]

In Delta ABC, If AD _|_ BC, then AB^2 + CD^2 is equal to

In Delta ABC, AB = BC , AD bot BC and CE bot AB , prove that AD = CE.

In Delta ABC, AB = AC. A circle is drawn with diameter AB and it intersects BC at D. Prove that D is the midpoint of BC.

Which of the following pairs of triangles are congruent ? In each case, state the condition of congruency : (a) In Delta ABC and Delta DEF , AB = DE, BC = EF and angle B = angle E . (b) In Delta ABC and Delta DEF, angle B = angle E = 90^(@) , AC = DF and BC = EF. (c) In Delta ABC and Delta QRP , AB = QR, angle B = angle R and angle C = angle P . (d) In Delta ABC and Delta PQR , AB = PQ, AC = PR and BC = QR. (e) In Delta ABC and Delta PQR , BC = QR, angle A = 90^(@), angle C = angle R = 40^(@) and angle Q = 50^(@) .

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 Delta ABC, if BC=AB and angleB=80^(@) ,then angleA is equal to

In Delta ABC, if BC=AB and angleB=80^(@) ,then angleA is equal to

In right triangle ABC , AB=BC , then angleA is equal to