Question

28. A wire is (7x – 3) metres long. A length of (3x – 4) metres is cut for use

(a) How much wire is left?

(b) If this left out wire is used for making an square. What is the length of each side

of the square so formed?

class 7 please it is urgent​

Answer 1

Step-by-step explanation:

length of wire = (7x – 3)m and wire cut for use has length = (3x – 4) m

(a) Left wire=(7x – 3) – (3x – 4) = 7x – 3 – 3x + 4 = 7x – 3x – 3 + 4 = (4x + 1)m

(b) ∴ Left wire = (4x +1)m

∴ Perimeter of equilateral triangle = Length of wire left => 3 x (side) = 4x + 1 => side = (4x +1)/3 = 1/3 (4x + 1)m.

Answer 2

Answer:

000000000000000.01% is the answer

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