The triangle PQR is inscribed in the circle `x^2+y^2=25`. If Q and R have coordinates (3,4) and (-4,3) respectively, then `angleQPR` is equal to

The triangle PQR is inscribed in the circle x^(2)+y^(2)=25 . If Q and R have coordinates (3,4) and (-4,3) respectively. Then find angle QPR .

A point P lies on the circle x^(2) + y^(2) = 169 . If Q = (5 , 12) and R = (-12 , 5) , then the angle angleQPR is _

A point P lines on the circle x^2+y^2=169 . If Q = (5, 12) and R= (-12, 5) , then angle angleQPR is

ABCD is a rectangular A circle circumscribing the rectangle. The coordinates of A and C are (-3, 4) and (5, 4) respectively. Coordinate of centre of the circle will be -

A square is inscribed in the circle x^2+y^2-2x+4y+3=0 . Its sides are parallel to the coordinate axes. One vertex of the square is (a) (1+sqrt(2),-2) (b) (1-sqrt(2),-2) (c) (1,-2+sqrt(2)) (d) none of these

The line x+y=p meets the x- and y-axes at Aa n dB , respectively. A triangle A P Q is inscribed in triangle O A B ,O being the origin, with right angle at QdotP and Q lie, respectively, on O Ba n dA B . If the area of triangle A P Q is 3/8t h of the are of triangle O A B , the (A Q)/(B Q) is equal to (a) 2 (b) 2/3 (c) 1/3 (d) 3

Find the area of an equilateral triangle inscribed in the circle x^2 + y^2 + 2gx + 2fy + c = 0

A B C is an equilateral triangle of side 4c mdot If R , r, a n d,h are the circumradius, inradius, and altitude, respectively, then (R+r)/h is equal to (a) 4 (b) 2 (c) 1 (d) 3

An isosceles triangle ABC inscribed in a circle x^2+y^2=a^2 with the vertex A at (a,0) and the base angle B and C each equal to 75^@ , then coordinates of an point of the base are

The area of the triangle inscribed in a circle of radius 4 and the ratio of its angles in the ratio 5:4:3 is