Find the area of shaded portion as shown in the figure.
Question 119 (ii)
A square tile of length 20 cm has four quarter circles at each corner as shown in the figure. Another tile with same dimensions has a circle in the centre of the tile as shown in the figure. If the circle touches all the four sides of the square tile, find the area of the shaded portion. In which tile, the area of the shaded portion will be more? (Take,π=3.14)
Question 118
A design is made up of four congruent right triangles as shown in the given figure. Find the area of the shaded portion.