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whats the answer to this

Whats The Answer To This class=

Answer :

Answer:

16 Units.

Step-by-step explanation:

Given:

  • AC = 2 (x-3)
  • BD = x + 5

THIS CASE ⇒ AC = BD

⇒ Substitute the values

2 (x - 3) = x + 5

⇒ Clear the value of x

2x - 6 = x + 5

2x - x = 5 + 6

x = 11

⇒ Substitute the value of x in any of the equations

11 + 5 = 16

⇒ Length of each diagonal is 16 units.

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Answer:

AC = 22

BD = 22

Step-by-step explanation:

The diagonals of a rectangle are equal in length.

⇒ AC = BD

⇒ 2(x - 4) = x + 7

⇒ 2x - 8 = x + 7

⇒ 2x - x = 7 + 8

⇒ x = 15

Substitute found value of x into the expressions for AC and BD:

AC = 2(x - 4)

     = 2(15 - 4)

     = 2(11)

     = 22

BD = x + 7

     = 15 + 7

     = 22

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