Which cities were India's first steel project-

The centroid of an equilateral triangle PQR is L. If PQ = 6 cm, the length of PL is:

The adjacent angles on a straight line are in the ratio 5 ∶ 4, then the smaller angle is –

PQRS is a cyclic quadrilateral. If ∠P is three times of ∠R and ∠S is four times of ∠Q, then the sum of ∠S + ∠R will be:

The area of a rhombus is 144 square units. The length of one of its diagonals is twice the length of other diagonal. What is the sum of length of its diagonals?

Two chords AB and CD of a circle with centre O intersect at P. If ∠APC = 40°. Then the value of ∠AOC + ∠BOD is

If one of the equal angles of an isosceles triangle is 65°, then the angle at the vertex is

AB is diameter of a circle with centre 'O'. CD is a chord which is equal to the radius of the circle. AC and BD are extended so that they intersect each other at point P. Then find the value of ∠ APB.