Monica Capoor Solutions for Exercise 13: Multiple Choice Questions

How many metres of carpet $1 \mathrm{m}$ wide will be required to cover the floor of a room $10 \mathrm{m}$ by $6 \mathrm{m}$?

If two sides of an isosceles right-angled triangle are $1 \mathrm{m} 60 \mathrm{cm}$ each, then the area of the triangle is

A parallelogram with a base of $16.5 \mathrm{cm}$ has an area of $231 {\mathrm{cm}}^2$. The altitude corresponding to the base is

If the ratio of the areas of two triangles is $4:3$ and that of their heights is $3:4$, then the ratio of their bases is

If the perimeter of a semicircle is $108 \mathrm{cm}$, then its diameter is [Take $\mathrm{\pi }=\frac{22}{7}$]

If the circumference of a circle is $16\mathrm{\pi } \mathrm{cm}$, then its area is

If the difference between the circumference and the radius of the circle is $18.5 \mathrm{cm}$, then the area of the circle is

If the outer and inner circumferences of a concentric ring are $396 \mathrm{cm}$ and $352 \mathrm{cm}$ respectively, then the width of the ring is