geometry

ABCD is a square. With centre B and C and radius equal to the side of the square, circles are drawn to cut one another at E inside the square. What is the measure of angle BDE?

Circle

A circle with radius 2 cm is placed against a right angle. Another small circle is placed in the gap between the circle and the right angle. What is the radius of the smaller circle?

geometry STD X

P, Q, S and R are points on the circumference of a circle of radius  "r". such that PQR is an equilateral triangle and PS is the diameter of the circle. What is the perimeter of the quadrilateral PQRS?

IMO test paper

IMO test Papers --- STD X

circle

The ratio of area of a square inscribed in a semicircle to the area of a square inscribed in a quadrant of the same circle is.......................................

IMO STD X

rationalisation

 

factorisation

Factorize: n³ – 3n – 2 

square root

Rationalize

quadratic equation

If a, b, c, are ɛ of {1, 2, 3, 4}, how many real roots are possible for 4ax² + 2bx + c = 0

IMO STD X

trigonometry STD X

IMO STD X