Monday, April 6, 2015

circle chapter 12-13

Circle

    For this unit, we learnt about circle. We learn about the introduction and all about circle. We had a activity to find the value of pi (3.14). We use 5 circular object and measure it with string and record it in a piece of A3 paper. We also need to make the report of that activity. We also made a written report about proving the area of circle, by using 3 method of circle.We have done a lot of classwork at chapter 12 until 13.  We also done an activity about art with compass, in this activity it make our skill in compass more better. 


Chapter Contents
12:01 Parts of a Circle
12:02 Circumference of a Circle
12:03 Solving problems involving circumference
12:04 Area of a Circle
13:01 Geometrical Constructions
13:02 Congruence and Transformation
13:03 Congruent Figures
13:04 Constructing Congruent Figures



Circle is a line forming a closed loop, every point on which is a fixed distance from a center point. All point has the same distance from the center point. 

Radius is the distance from the center to the edge 
Diameter  starts at one side of the circle, goes through the center and ends on the other side.
The circumference is the distance around the edge of the circle. 







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