Question

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Answer 1

Answer:

diameter = 3.5 cm

radius = 3.5/2

Area = π r²

$= \frac{22}{7} \times \frac{3.5}{2} \\ = \frac{11}{7} \times 3.5 \\ = 11 \times 0.5 \\ = 5.5 \: cm^{2}$

Answer 2

Answer:

area = 31.50 cm²

Step-by-step explanation:

3.5 cm is the length of one side of the square and also the diameter of the semicircle.

area of square = side²

                        = 3.5²

                        = 12.25 cm²

area of 4 semicircle = 4 * 1/2 π r²                [ radius = 3.5 / 2 = 1.75 ]

                                 = 2 * 3.14 * 1.75²

                                 = 19.25 cm²

the area of figure = area of square + area of 4 semicircle

                             = 31.25 cm²