Question

A tangent is drawn to circle from a point 2.6 cm apart from its centre. The length of tangent is 2.4 cm then its diameter is _____​

Answer 1

2cm ANSWER

FROM LINE CENTRE IT FORMS HYPOTENUSE

RADIUS WHICH IS PERPENDICULAR TO THE OTHER SIDE

TANGENT=2.4

LINE DRAWN FROM CENTRE IS 2.6CM

BY USING PYTHAGORAS THEOREM

(RADIUS)^2 + (TANGENT)^2 =( LINE FROM CENTRE)^2

RADIUS ^2 + 2.4^2 =2.6^2

RADIUS^2 + 5.76 = 6.76

RADIUS^2=6.76-5.76

RADIUS^2=1.00

RADIUS = ROOT OF 1

RADIUS =1cm

DIAMETER = 2×RADIUS=2×1=2CM