For a right angled triangle, with one angle θ (which is not the right angle), the trigonometric ratios are defined as follows: sin θ = Perpendicular / Hypotenuse (corresponding to the angle...
CIRCUMFERENCE OF THE CIRCLE The CIRCUMFERENCE of a circle is the total length of the outer periphery(boundary) of the circle. If radius of the circle = r Then, Circumference of the circle...
Exercise: 10.1 How many tangents can a circle have? Answer A circle can have infinite tangents. Fill in the blanks : (i) A tangent to a circle intersects it in ..................