Q 1: Circumference of a circle = pd. False True

Q 2: Formula for area of ring = p(R+r)W. True False

Q 3: The semicircles of a circle are symmetric to diameter of a circle. False True

Q 4: To find the area of a ring, the two circles of that ring need not be concentric. False True

Q 5: If the radii of a ring are 10cm. and 5cm. respectively, then its area is 50 Sq.cm. False True

Q 6: Perimeter of a circle = (36/14)d. False True

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

Q 8: The angle at the center of circle is 330°.
False True

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!

