From a fixed point `A` on the circumference of a circle of radius `r ,` the perpendicular `A Y` falls on the tangent at `Pdot` Find the maximum area of triangle `A P Ydot`

Find the circumference and area of a circle of radius 4.2cm.

Find the circumference and area of a circle of radius 8.4cm.

A point P is given on the circumference of a circle of radius r. Chords QR are parallel to the tangent at P. Determine the maximum possible area of triangle PQR.

Find the circumference and area of a circle of radius 10.5cm .

P is a point on y^(2)=4ax lying in the first quadrant and on the arc OL,where O(0,0) is the vertex M is the foot of the perpendicular from F (the focus) to the tangent at P Find the maximum area of triangle FMP (L is an extremity of the latus rectum)

If 'P' is any point on the circumference of the circle x^(2) + y^(2) - 4x - 4y -8 =0 , then the perpendicular distance of the tangent at P from the centre of the circle is

If a triangle is inscribed in a circle of radius r , then which of the following triangle can have maximum area

The circumference of the circle is 31.4cm. Find the radius and area of the circle

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