Q 1: To find area of ring, the difference between the radii is not essential. True False

Q 2: If the radii of a ring are 7 cm. and 2 cm. then the width is 5 cm. True False

Q 3: To find the area of a ring, the two circles of that ring need not be concentric. True False

Q 4: The angle at the center of circle is 330°.
False True

Q 5: Circumference of a circle = pd. True False

Q 6: Perimeter of a semicircle is 2pr.
True False

Q 7: Perimeter of a circle = (36/14)d. False True

Q 8: The semicircles of a circle are symmetric to diameter of a circle. False True

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!

