Circle | Class 7 | Practice Set 42

Circle | Class 7 | Practice Set 42

Circle Class 7 Practice Set 42, simple solutions of all the examples is given in the PDF file attached below.

If you experience any type of problem with the opening of this pdf file then try to zoom in the pdf file to 110% and then it should solve your problem.

Also read : Equations in one variable | Class 8 | Practice Set 12.1

In this practice set we will be asked to find the radius of the circle, diameter of the circle and circumference of the circle. The circumference of the circle is calculated by the formula c = 2(pi)r. The relationship between radius of a circle and the diameter of a circle is given by the formula, d =2r.

The value of pi is taken as either 22/7 or 3.14. In this way all the examples are solved using the above mentioned formulas and by performing appropriate mathematical operations.

Also read : Linear Equations in two variables | Class 10 | Practice Set 1.5

Practice Set 42

Complete the table below.
Sr. No. Radius (r) Diameter (d) Circumference (c)
(i) 7 cm ……… ………
(ii) ……… 28 cm ………
(iii) ……… ……… 616 cm
(iv) ……… ……… 72.6 cm

2. If the circumference of a circle is 176 cm, find its radius.
3. The radius of a circular garden is 56 m. What would it cost to put a 4-round fence
   around this garden at a rate of 40 rupees per metre ?
4. The wheel of a bullock cart has a diameter of 1.4m. How many rotations will the
   wheel complete as the cart travels 1.1 km ?

7th-Practice-Set-42