Draw any circle on the graph paper. Count the squares and use them to estimate the area of the circular region.

By counting squares, estimate the area of the figure 10.9 a.

By counting squares, estimate the area of the figure 10.9 b.

A child makes a poster on a chart paper drawing a square A B C D of side 14 cm. She draws four circles with centre A ,\ B ,\ C and D in which she suggests different ways to save energy. The circles are drawn in such a way that each circle touches externally two of the three remaining circles. In the shaded region she write a message Save Energy. Find the perimeter and area of the shaded region.

Plot the points A(2, 9), B(-1, 3) and C(6, 3) on a graph paper . On the same graph paper, draw the locus of point A so that the area of DeltaABC remains the same as A moves.

Draw the line 2x-3y-18=0 on a graph paper. From the graph paper, read the y-intercept of the line.

A square is inscribed in a circle. The area of the square is what percent of the area of the circle? (Disregard the percent symbol when gridding your answer).

In figure, a square is inscribed in a circle of diameter d and another square is circumscribing the circle . Is the area of the outer square four times the area of the inner square ? Give reason for your answer.

Draw the line 3x+4y=12 on a graph paper. From the graph paper, read the y-intercept of the line.

Draw a rough sketch of the graph of the curve x^2/4+y^2/9=1 and evaluate the area of the region under the curve and above the x-axis.

In square ABCD, A=(3,4),B=(-2,4) and C=(-2,-1). By plotting these point on a graph paper, find the co-ordinates of vertex D. Also find the area of the square.