cut in half then cut both halves in half again
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You cut the shape down into smaller shapes that you recognise and know how to calculate the area of. Then calculate the area of the small shapes and add the all up.
Cut them into triangles and use the pythagorean theorem
Draw a box 3 cm wide by 4 cm long. This box has an area of 12 square centimeters (3 cm X 4 cm = 12 cm2). Or you could do 2 cm wide by 6 cm long. The shape in question has the same area as this box. If you cut out this box in cardboard, and cut out the same shape in question, from the same material, they would both have the same mass.
fferent sizes of ribbon are cut to different shapes in inches, what is the decimal equivalent of each number to the nearest 10th square root of 3 , 2 times the square root of 3, square root of 5 and 3.14
by dividing area by 9 area = side2 divide this value by 9