We use the equation 2x+8x=50.
10x=50
x=5
The rectangle will be 20 cm long and 5 cm wide.
Hope this helps!
You can apply it when exercising I believe believe because in weight lifting it has pounds and ounces.
Multipy the hight with the width, just like you would if it was a square, because if you were to cut off one sides with a slant, and place it on the opposite side it would make a square and it wouldn’t affect the area.
