Instructions
Instructions: Study the following diagram to answer the questions.
Question 137
If it is known that the the radius of each of the inscribed circles is 7 units then the area of the shaded region of square ABCD is ?
Solution
Area of square = 28 x 28 = 784 sq.cm
Area of four circles = 4$$\pi$$r2
= 4 x $$\frac{22}{7}$$ x 7 x 7 = 616 sq.cm
Area of shaded region
= 784 - 616 = 168 sq. cm
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