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tkbchimyjr18

What is the perimeter of the shape below?

(1) One of the sides of the shape is 140 metres long.

(2) One of the sides of the shape is twice as long as each of the two shortest sides.


Attachment:
IMG_20200120_232032.jpg

x = x < (x+70) < √10 x
OR
x = x < √10 x < (x+70)

Depending on the value of x

Question: x + x + √10 x + (x+70) = ?

To answer this question we need the value of x

Statement 1: One of the sides of the shape is 140 metres long.

either x = 140 OR x+70 = 140 OR √10 x = 140
i.e. different possible values of x hence

NOT SUFFICIENT

Statement 2: One of the sides of the shape is twice as long as each of the two shortest sides.

Smallest = x
But 2x ≠ √10 x
i.e. 2x = x+70
i.e. x = 70
SUFFICIENT

Answer: Option B
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