dhruvapangeni dhruvapangeni

21-08-2021
Mathematics

contestada

if two adjacent sides of rectangle having perimeter 21 cm are in the ratio 3:4 what is the area of the rectangle is ...cm ?

Respuesta :

21-08-2021

Let the length and breadth be l and b respectively.
Given,
l/b=3/4
=> l = 3b/4

We have,
P = 2(l+b)
=> 21 = 2(3b/4 + b)
=> 21*2= 7b
=> b = 6cm

Similarly,
l = 4.5cm
Thus, Area = l*b
=> Area = 4.5*6
=> Area = 27cm^2

Answer Link

Otras preguntas

What is a transitional word or phrase?

Pls answer the blanks

alisa says its easier to compare the numbers 45,760 and 1,025,680 than the numbers 492,111 and 409,867 what is one way you could construct an argument justifyin

read the excerpt from the odyssey. `nohbdy, nohbdy's tricked me, nohbdy's ruined me!' to this rough shout they made a sage reply: 'ah well, if nobody has played

write an algebraic equation or expression or the word phrase 25y=5

In the following sentence, which word is the possessive pronoun being used as an adjective? She listened to the question and then raised her hand. She her hand

The rectangle shown has a perimeter of 34 cm and the given area. Its length is 5 more than twice its width. Write and solve a system of equations to find the di

solve the equation y^2 = 25/81

Which sentence uses correct punctuation? My mother always told me that, "slow and steady wins the race." My mother always told me that, "Slow and steady wins th

What does the Law of the Conservation of Mass state