the length of one of the diagonals of a rhombus is 5 cm less than the length of the Other diagonal the area of the Rhombus is 33 cm square find the length of each diagonal
Answers
Answer:
length of diagonals are 11cm and 6cm
Step-by-step explanation:
area of rhombus = (1/2)* product of its diagonals
let x cm be one diagonal and thus other diagonal will be x-5cm
area=(1/2)*x*(x-5)
33=(1/2)*(x²-5x)
x²-5x=66
x²-5x-66=0
x²-11x+6x-66=0
x(x-11)+6(x-11)=0
(x+6)(x-11)=0
x=11 cm. (because diagonal cannot be negative -6cm)
two diagonals are 11cm and 6cm
The length of each diagonal is 11 cm and 6 cm.
Consider the provided information.
Area of rhombus is: A=
Where p and q are the diagonals of the rhombus.
Let the length of one of the diagonals is x.
Then the length of another diagonal is x-5.
The area is 33 cm².
Substitute the respective values in the above formula.
33=
x²-5x=66x²−5x=66
x²-5x-66=0x² −5x−66=0
x²-11x+6x-66=0x² −11x+6x−66=0
x(x-11)+6(x-11)=0x(x−11)+6(x−11)=0
(x-11)(x+6)=0(x−11)(x+6)=0
x=11\ or\ x=-6x=11 or x=−6
The value of length can't be a negative number.
Hence, the length of one diagonal is 11 cm.
The length of another diagonal is 5 less than 11.
11-5 = 6cm
Hence, the length of each diagonal is 11 cm and 6 cm.