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Setler79 [48]
3 years ago
13

The diagram shows a rectangle and a square.

Mathematics
1 answer:
Alex777 [14]3 years ago
3 0

Answer:

  4 cm

Step-by-step explanation:

The side of the square will be the average of the two sides of the rectangle with the same perimeter.

Formulas for the perimeters are ...

  P = 2(L+W)

  P = 4s

Equating these gives ...

  4s = 2(L+W)

  s = (L +W)/2 . . . . . divide by 4

For the given side lengths, ...

  s = (2 cm +6 cm)/2 = (8/2) cm = 4 cm

The length of one side of the square is 4 cm.

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If x=1+√2, evaluate x³+1/x³

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