Question

4 circles are drawn side by side in a line and enclosed by a rectangle. If the radius of each of a circle is 3 cm. Then calculate 1. Area of a rectangle.
2. Area of a each circle.
3. The shaded area of inside the rectangle

Answer 1

Step-by-step explanation:

Solution:

Step 1: Find area of inner square = 2 cm × 2 cm = 4 cm2

Step 2: Find area of outer shape = (2 cm × 3 cm) + (10 cm × 3 cm)

                                           = 6cm2 +30 cm2

                                                        = 36 cm2

Step 3: Area of shaded region = area of outer shape – area of inner square

                                = 36 cm2 – 4 cm2

                                = 32 cm2