In ΔABC, ∠C=90° and CD is perpendicular to AB at D. If AD/BD=$$ {\sqrt{k}}$$, then AC/BC=?

O is the incentre of ∆ABC and ∠A = 30° then ∠BOC is

What is the measure of the circum radius of a triangle whose sides are 9cm, 40cm and 41cm?

Find the value of ∠BAC in the given diagram If AB=AC=CD and ∠ADB=20°?

Δ ABC is a right angled triangle whose angle A is right angled. Which side needs to bisect to form two other right angled triangles?

Four coins whose diameter is 12.6 cm are placed in such a way that one coin touches the other coin, find the area between them.

Each side of an equilateral triangle is 4 cm. What will be its area?

QA and PB are perpendicular to AB in the given figure. If AO = 10 cm, BO = 6cm, BP = 9 cm, then the length of AQ is__