Question

perimeter of a square is 12 cm and that of the another square is 16 cm. Find the perimeter of
a square which is equal in area to these combined two squares.
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Answer 1

Answer:

20

Step-by-step explanation:

perimeter of 1st square is 12 so it's side is 3cm and area is 9cm²

perimeter of 2nd square is 16 so it's one side is 4cm and area is 16cm²

so sum of area of these squares =16+9=25

area of 3rd square is 25 so it's side is 5cm

and perimeter = 5×4=20cm