The equation of ellipse:

The formula of c (the distance to the foci)

<h3>Answer: c² + b² = a²</h3>
Let x be the original side length of the square
P=2(l+w)
70=2((2.5+x)+(2.5+x))
70=2(5+2x)
70/2 = 5+2x
35-5=2x
30=2x
15=x
Therefore, the original length of the square was 15"
Hope I helped :)
Where the picture of the triangle?
Answer:
greater greater then
Step-by-step explanation:
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