Check out some similar questions!

siddhantbhopal · May 30, 2009, 01:51 AM

1. To give suggestive demonstration of formula that the area of the circle is half the product of its circumference and radius
a)by coiling method
b)by paper cutting and pasting.

2.to verify that the sum of first n odd natural number is n2 by an activity method.

3.To verify that the sum of area of three sectors of same radii 'r' formed at the vertices (as centre) of any triangle r2/2 using paper cutting and pasting.

4.
a)to compare the curves surface area of two right circular cylinder which are formed rectangular sheet of paper having same dimension.
b)to compare total surface area of two right circular cylinder s which are formed from rectangular sheet of paper having same dimension.

5.to compare the volume of two right circular cylinder which are formed rectangular sheet of paper having same dimension.

6.to illustrate the medians of a triangle concur at a point called circumference,which always lies inside the circle using paper folding mehod.

Send SOLUTION FAST AS MUCH POSSIBLE ON

[email protected]

Unknown008 · May 30, 2009, 05:52 AM

Hum... I'm not sure what you are required to do. If it's to prove that these activities are valid, I'll do the first one;

$Circumference = 2\pi r$

$Area =\frac{ 2\pi r}{2} \times r=\pi r^2$ which is true