Question Text
Question 1 :
The diameter of the wheel of a car is 70 cm. How many revolutions will it make to travel one kilometre?
Question 2 :
The radii of two circles are in the ratio 3 : 5, find the ratio between their circumferences.
Question 3 :
The lengths of the sides of two squares are in the ratio 8:15, find the ratio between their perimeters.
Question 4 :
The circumferences of two circles are in the ratio 5 : 7, find the ratio between their radii.
Question 5 :
Find the area (A) and the perimeter (P) of the rectangle whose dimensions are as follows:<br>{tex} l=2.2 \mathrm{~m}, b=0.1 \mathrm{~m} {/tex}<br>
Question 6 :
The perimeters of two squares are in the ratio 8:15, find the ratio between the lengths of their sides.
Question 7 :
The area of an equilateral triangle with side {tex} ^{\prime} 2 a^{\prime} \mathrm{cm} {/tex} is {tex} \sqrt{3} a^{2} {/tex} sq {tex} \mathrm{cm} {/tex}
Question 8 :
If the height of a parallelogram is doubled and base tripled, then its area becomes<br/>
Question 9 :
If the area of a circle is numerically equal to its circumference, then the radius of the circle is<br/>
Question 10 :
The perimeter of a semicircle (including its diameter) of radius 7 cm is<br/>