Question

Draw a circle of diameter 9 cm. Name its centre A, diameter CD and
radius AB​

Answer 1

STEP 1:

Take a point on your paper and mark it as A. This will be the centre of your circle.

STEP 2:

From A, draw a line to any point on the circumference of the circle.

Extend this line on the opposite side. You will get a line that goes through the centre and meets opposite points on the circumference. This is the diameter. Label the points of the diameter as C and D.

STEP 3:

From centre A, draw a line to the circumference but do not extend it. This is your radius. Label the point on the circumference as B.

NOTE:

The length of the diameter is twice the length of the radius, and the length of all radii (multiple radius) is always equal.

So,

AB=AC=AD,

and CD=2AC=2AD=AB.

I have attached a rough diagram with this so you get some clarification on how your figure would look.

Answer 2

Answer:

We can use a compass and ruler to draw a circle of diameter 9 cm and name its centre A.

Step-by-step explanation:

Here are the steps:

1. Draw a straight line AB of length 9 cm using a ruler. This will be the circle's diameter, and A will be its center.
2. Place the compass on point A and adjust the width to half of the length of AB, which is 4.5 cm.
3. Keeping the compass at the same width, draw a semicircle on either side of AB. These two semicircles intersect at point A, which is the center of the circle.
4. Label the points where the semicircles intersect the diameter AB as C and D.
5. Draw a line segment from A to either C or D. This line segment is a radius of the circle, which we can label as AB.
6. Finally, label the circle as O, with centre A and diameter CD.

In summary, we draw a line segment AB of length 9 cm and label its midpoint as point A. We draw two semicircles with centre A and radius AB, which intersect AB at points C and D. We label the line segment AC or AD as AB, which is the circle's radius. Finally, we label the circle as O with centre A and diameter CD. This circle has a radius of 4.5 cm, which is half the length of the diameter.

To learn more about diameter, click on the given link.

https://brainly.in/question/253383

To learn more about compass and ruler, click on the given link.

https://brainly.in/question/15035639

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