In `DeltaABC and Delta EDC,AB` is parallel to `ED. BD=1/3BC and AB=12.3 cm`

In DeltaABC , D and E are points on AB and AC respectively such that DE is parallel to BC. If AD= 2 cm, BD = 3 cm, then (ar(DeltaADE))/(ar(DeltaABC)) is

In Delta ABC, AB=AC and D is a point on side AC such that BD = BC, If AB = 12.5 cm and BC = 5 cm, then what is the measure of DC ?

In DeltaABC , PQ is parallel to BC, while P and Q are at AB and AC respectively. If AB = 3AP, then what is the ratio of areas of triangles DeltaAPQ and DeltaABC .

In DeltaABC AD is angle bisector such that BD : DC = 2 : 3. If AB = 7 cm then find AC : BC.

In DeltaABC,AD is the inernal besector of angleA . If BD = 5cm , BC=7.5 cm , then AB:AC=

In DeltaABC , right angled at B, AB=35 cm and BC=12cm. Find the values of (1) sinA (2) cosA (3) sinC (4) cosC.