What measure of the circles make them congruent?

The measures of two supplementary angles differ by 20^(@) . Then the measure of the acute angle among them is ..........

In the figure, which circles are congruent to the circle A?

There are some statements given below. Write whether they are true or false : Two circle are always congruent.

If the measure of an angle is 62^(@) , what is the measure of its complementary angle?

Draw a circle of radius 6 cm. From a pint 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths.

What are the measures one has to take to prevent from contracting STDs ?

Which minimum measurements do you require to check if the given figures are congruent: i. Two rectangles " " ii. Two rhombuses.

If error in measuring diameter of a circle is 4 %, the error in circumference of the circle would be :-