Question

if the perimeter of a square with side 7 metre is equal to the circumference of a radius find the diameter​

Answer 1

So perimeter of square = radius = 7 meter

Diameter = 2 × radius

= 2 × 7 meters

= 14 m

Answer 2

side of square =7 metre..

its given that its equal to circumference of circle..

we know that

circumference of circle= 2piR=7

so radius= 7/2pi

$r = \frac{7}{2\pi} = 1.11$

now diameter is 2r

$diameter = 2r = 2 \times 1.11 = 2.22$

if you dont want to equate pi..

then radius is 7/2pi.. and diameter= 7/pi..