Question

The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has
circumference equal to the sum of the circumferences of the two circles.

The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal
sum of the areas of the two circles.

A horse is tied to a peg at one corner of a square shaped grass field of side 15 m by means of a 5 m lo
rope (see Fig). Find (i) the area of that part of the field in which the horse can graze. (ii) the increase in the
grazing area if the rope were 10 m long instead of 5 m. (Use = 3.14)
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Answer 1

Answer:

We will use the formula of the circumference of the circle=2πr. Complete step-by-step answer: It is given that the radius of the two circles is 19 cm and 9 cm respectively. Hence, 28cm is the radius of the resultant circle.

Step-by-step explanation:

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