Yes they are proportional. We can say that the new design is just a larger version of the smaller one. Now, <span>If the design and the cover are similar quadrilaterals then they should be corresponding, as it is the case in this example</span>
Answer:
.
Step-by-step explanation:
Let
x---------> length original square side
x1--------> length resulting rectangle
y1--------> wide resulting rectangle
A1--------> area resulting rectangle
we know that
x1=x+2
y1=x-2
A1=60 in²
60=(x+2)*(x-2)--------> 60=x²-2x+2x-4-------> 60=x²-4------> x²=64
x1=8
x2=-8
the solution is
x=8 in
<span>the area of the original square is 8*8-------> 64 in</span>²
the answer is 64 in²
If you would like to calculate g * 5 - h * 3 for g = 2 and h = 7, you can do this using the following step:
g = 2
h = 7
g * 5 - h * 3 = 2 * 5 - 7 * 3 = 10 - 21 = - 11
The correct result would be - 11.