4. A square with area 54 square units is placed beside a square with area 75 square units. Find the outside perimeter of the given shape, in fully simplified form. (3 marks)
\boxed{perimeter = 6\sqrt{6} + 10\sqrt{3}}
Step 1 :Find the side lengths of both squares:
Step 2 :Find the perimeter of the combined shape:
Step 3 :\boxed{perimeter = 6\sqrt{6} + 10\sqrt{3}}