Choose the correct answer:
If the area of a rectangle whose length is twice its breadth is 800 m², then the length and breadth of the rectangle are:
A. 60m and 20m
B. 40m and 20m
C. 80m and 10m
D. 100m and 8m
Answers
Answered by
0
B : 40m and 20m
If it is correct I can explain
If it is correct I can explain
Answered by
0
hey here b=X and l=2x meters
thus the area will be l*b = 2x^2=800
thus x^2 =800/2=400
thus X=+/-(20) as X is length it can't be negative thus b=20 m and l = 40 m
thus the area will be l*b = 2x^2=800
thus x^2 =800/2=400
thus X=+/-(20) as X is length it can't be negative thus b=20 m and l = 40 m
Similar questions