Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Areas Related to Circles

Short Answer Type

81. Two circles touch internally the sum of their areas is 116π cm² and distance between their centres is 6 cm. Find the radii of the circles.

722 Views

82. The inside perimeter of a running track, as shown in fig. is 340 m. The length of each straight portion is 60 m and the curved portions are semicircle. If the track is 7 m wide, find the area of the track. Also, find the outer perimeter of the track.

448 Views

83. The area of an equilateral triangle is

bold 49 square root of bold 3 bold space bold cm to the power of bold 2 bold.

Taking each angular point as centre, a circle is described with radius equal to half the length of the side of the triangle as shown in fig. Find the area of the triangle not included in the circle.

106 Views

84. Find the area of the shaded region of Fig. 12.64, if the diameter of the circle with centre O is 28 cm and AQ =

1 fourth space AB.

442 Views

85. In Mr. Kumar's house there is a flower pot. The sum of radii of circular top and bottom of flower pot is 140 cm and the differences of their circumference is 88 cm. Find the diameter of the circular top and bottom.

102 Views

86. Abhishek Singh has a tractor. The sum of radii of two wheels of the tractor is 98 cm and the difference of their circumferences is 176 cm. Find the diameter of the wheel.

176 Views

87. The wheels of the car are 80 cm in diameter. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 80 cm/m.

5303

134 Views

88.

A wheel of diameter 42 cm makes 240 rounds per minute. Find

(i) The total distance covered by the wheel in one minute.
(ii) The speed of the wheel in km/hr.)

309 Views

89. A square of side 4 cm is inscribed in a circle. Find the area enclosed between the circle and the square.

76 Views

90. A circular grassy land has perimeter of 660 m. A plot in the shape of a square having its vertices on the circumference of the field is marked in the field. Calculate the area of the square field.

168 Views