Question

Study the figure below carefully and answer the following questions?
a. How many squares are there in the figure?
1) 15
2) 16
3717
4) 18
b. How many rectangles (including squares) are there?​

Answer 1

square

explanation

The square root of a number is the number when multiplied by itself results in the original number.

The square root of 18 is written as √18 = 4.2426.

Square root of 18 in radical form = √18 = √(2 × 3 × 3) = 3√2.

Hence, 18 is not a perfect square.