Madhu's flower garden is now a square. If she enlarges it by increasing the width 1 m and the length is 3 m. The area will be 19 m 2 more than the present area. What is the length of a side now?
Answers
Answered by
447
Let the side of the garden(square) is x m. Then the are is x² m².
The new length is (x+3) m and the new width is (x+1) m. Then the new area will be, (x+3)(x+1) m².
By the given question,
(x+3)(x+1)=x²+19
or, x²+3x+x+3=x²+19
or, 4x+3=19
or, 4x=19-3
or, 4x=16
or, x=4 m
The new length is (x+3) m and the new width is (x+1) m. Then the new area will be, (x+3)(x+1) m².
By the given question,
(x+3)(x+1)=x²+19
or, x²+3x+x+3=x²+19
or, 4x+3=19
or, 4x=19-3
or, 4x=16
or, x=4 m
Answered by
130
here is your answer.
Attachments:
Similar questions