CBSE Class 10-Mathematics: Chapter –12 Areas Related to Circles Part 2
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Question 9:
The circumference of a circular field is . Then its radius is
(a)
(b)
(c)
(d)
Answer:
(a)
Question 10:
If the perimeter of a circle is equal to that of a square, then the ratio of their area is
(a)
(b)
(c)
(d)
Answer:
(c)
Question 11:
Area of a sector of angle of a circle with radius R is
(a)
(b)
(c)
(d)
Answer:
(d)
Question 12:
Area of the sector of angle of a circle with radius is
(a)
(b)
(c)
(d) None of these
Answer:
(b)
Question 13:
The area of a circle is . Then the radius of the circle is
(a)
(b)
(c)
(d)
Answer:
(c)
Question 14:
If the sum of the areas of two circles with radii and is equal to the area of a circle of radius R, then
(a)
(b)
(c)
(d)
Answer:
(a)
Question 15:
Circumference of a sector of angle of a circle with radius R is
(a)
(b)
(c)
(d)
Answer:
(c)
Question 16:
If the perimeter and area of circle are numerically equal, then the radius of the circle is
(a)
(b)
(c)
(d)
Answer:
(a)