you have to mulitiply the down part and the right or left part
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Find the total area of the square: length times height. Next, find the total area of the circle: Pi times radius to the second power, or Pi(r squared). If you are doing this by hand, 3.14 is usually acceptable for Pi. Once you have the are of both the square and the circle (the area of the circle should be smaller than that of the square), subtract the area of the circle from the area of the square. The difference is the area of those extra corners of the square that the circle does not occupy. It is actually quite simple. This demonstrates the danger of thinking in words rather than pictures.
HOW TO FIND THE AREA OF A SQUAREmust x all sides
The formula for the area of a square is A=s2. So to find the sidelength, find the square root of the area.
You square-root the area
Area of a square: A=s*s A=s2