CHAPTER-11 PERIMETER AND AREA (SET-2)

Questions in this test

1. The length of a rectangle is increased by 60%. By what % would the width have to be reduced to maintain the same area?
2. The diagonal of a square is $4\sqrt{2}cm$. The diagonal of another square whose area is double that of the first square is
3. The diagonal of a rectangle is $\sqrt{41}cm$ and its area is 20 sq. cm. The perimeter of the rectangle must be
4. The area of a 6m wide road outside a garden in all its four sides is 564 sq. m. if the length of the garden is 20m, what is its breadth?
5. The ratio between the length and perimeter of a rectangular plot is 1:3. What is the ratio between the length and breadth of the plot?
6. The base of a △ is 15 cm and height is 12cm. The height of another △ of double the area having the base 20cm is:
7. The hypotenuse of a right-angled isosceles △ is 5cm. The area of the △ is
8. The ratio of the base of two triangles is $x:y$ and that of their areas is $a:b$. Find the ratio of their corresponding altitudes will be.
9. The perimeter of a right-angled △ is 60cm. its hypotenuse is 26cm. The area of the △ is
10. The area of an equilateral △ is $400\sqrt{3}m^2$. Its perimeter is