Question

a square is equal in area to a rectangle whose base is 9 and whose altitude is 4. find the perimeter of the square

Answer 1

area of rectangle= base ×height

=9×4=36sq.units

area of square =area of rectangle

side^2=36

Thus, side=6units

Perimeter of square=4×side

4×6=24 units.

Answer 2

area of square =side2

area of rectangle=l×b=4×9=36

area of square =area of rectangle

then,

side2=36
side =√36=6

now



perimeter of square=4 ×side

=4×6=24

perimeter of square=24