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E:\Working\Focus_Learning\Math_Genius_5_(05-10-2023)\Open_Files\CHAP_06
\\November 23, 2023 10:09 AM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74
Learning by Doing
Objective: Find the centre of a circle by folding paper.
materials required: A paper sheet, a pencil, a scissor, a circular object (a bangle,
a plate, or a bowl, etc.)
Procedure:
Trace the circle on a paper sheet with the help of circular
object and cut it out.
Fold the circle into two equal parts.
A O B
Now again fold it into halves. The circle is now folded into
four equal parts.
A B O A(B) O
Now, open all folds.
A B
O
Clearly, the two creases formed on the circle intersect
each other at a point. This point O is the centre of the
circle. O
maths fun
Use the given clues and solve the given crossword. 1
Across 2 3 5
4. A line segment joining any two points on the circle 4
6. The fixed point on which all the points on the circle are
equidistant
7. Angles are measured in 6
down 7
1. The distance around a circle is called
2. The shape of a bangle
3. The distance between two points across a circle through its centre
5. A line segment joining any point on the circle with the fixed interior point
146 Mathematics-5
