So, if you draw a circle it will form a right angle triangle with hypotenuse 5 cm and base 3 cm. using Pythagoras theorem, the length will be equal to 4 cm.

Two chords AB and AC of a circle subtends angles equal to 90 degree and 150 degree, respectively at the centre. Find the angle BAC, if AB and AC lie on the opposite sides of the centre?

Find the locus of the centre of a circle of constant radius (r) which touches a given circle of radius r1: externally; internally, given r1 is greater than r?

Manisha 29/10/2016 in Class IX-X Tuition, Mathematics(Class IX-X Tuition), Circles

Find the length of the tangent from a point which is at a distance of 5 cm from the centre of the circle of radius 3 cm?