The length and breadth of a rectangle are in the: ratio of 4 : 3 respectively and its area is 1728 m . Find the perimeter of rectangle? (in m)

The length and breadth of a rectangle are in the: ratio of 4 : 3 respectively and its area is 1728 m . Find the perimeter of rectangle? (in m)
1). 116
2). 152
3). 176
4). 124

2 answers

Answer This Question
Name:
Email:
Answer :
Sum of (4+2)
Submit:

Other Questions

1. A point P lying inside a triangle is equidistant from the vertices of the triangle. Then the triangle has P as its

2. The perimeter of a rectangle and a square are 160 m each. The area of the rectangle is less than that of the square by 100 sq m. The length of the rectangle is

3. A right circular cone of base radius 15 cm and height 40 cm is cut parallel to its base so as to obtain a frustum of height 10 cm and volume of 2000π cm3. What is the radius of the upper base of the frustum?

4. The base angle of an isosceles trapezium is 45°. If the shorter side and both the equal sides are 10 cm each, what is the area of the trapezium?

5. Two parallel chords are on the one side of the centre of a circle. The length of the two chords is 24 cm and 32 cm. If the distance between the two chords is 8 cm, then what is the area (in cm2) of the circle?

6. In a cylindrical vessel of diameter 24 cm filled up with sufficient quantity of water, a solid spherical ball of radius 6 cm is completely immersed. Then the increase in height of water level is :

7. If the length and breadth of a cuboid is 4 and 3 times its height respectively, then the diagonal of the cuboid is how many times the height of the cuboid?

8. In a triangle the length of the side opposite the right angle is 9√3 cm, what is the length of the side opposite to the angle which measures 30 degree?

9. Area of a square is 64 m2. If its perimeter is doubled then the new area of the square (in m2) is

10. The volumes of a right circular cylinder and a sphere are equal. The radius of the cylinder and the diameter of the sphere are equal. The ratio of height and radius of the cylinder is

Guest · Answer 1 · 2019-04-06 15:47:37

Solution

Let the length and breadth of the rectangle be $4x$ and $3x$

=> Area of rectangle = $4x \times 3x = 1728$

=> $x^2 = \frac{1728}{12} = 144$

=> $x = \sqrt{144} = 12$

$\therefore$ Perimeter of rectangle = $2 (4x + 3x)$

= $14x = 14 \times 12$

= $168$ metre

Guest · Answer 2 · 2019-04-20 01:47:21

Solution

Let the length and breadth of the rectangle be $4x$ and $3x$

=> Area of rectangle = $4x \times 3x = 1728$

=> $x^2 = \frac{1728}{12} = 144$

=> $x = \sqrt{144} = 12$

$\therefore$ Perimeter of rectangle = $2 (4x + 3x)$

= $14x = 14 \times 12$

= $168$ metre

The length and breadth of a rectangle are in the: ratio of 4 : 3 respectively and its area is 1728 m . Find the perimeter of rectangle? (in m)

2 answers

Answer This Question

Other Questions

General Knowledge Questions

English Language and Comprehension

Quantitative Aptitude

ExamCompetition 2015-2021