Question 12 Marks
Take a point on your notebook and draw circle of radii 4cm, 3cm and 6.5cm, each having the same centre O.
Answer
View full question & answer→The given shows circles of radii 4cm, 3cm and 6.5cm, respectively.
Questions
2 Mark Question
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5 questions · self-marked practice — reveal the answer and mark yourself.
Question 22 Marks
Take two points A and B on the page of your note book. Draw a circle with centre. A which passes through B.
Answer
View full question & answer→The semi-circle with centre O and radius 5 cm is shown below:
The end point of a diameter of a circle divides it into two equal parts, and each part is called a semi-circle. So, it is not the diameter, but end points of the diameter that determines the semi circle or a part of the semi-circle.
The end point of a diameter of a circle divides it into two equal parts, and each part is called a semi-circle. So, it is not the diameter, but end points of the diameter that determines the semi circle or a part of the semi-circle.
Question 32 Marks
Draw a semi-circle with centre O and radius 5cm. Is the diameter that diameter that determines the semi-circle, a part of the semi-circle?
Answer
View full question & answer→The semi -circle with centre O and radius 5 cm is shown below:
The end point of a diameter of a circle divides it into two equal parts, and each part is called a semi-circle. So, it is not the diameter, but end points of the diameter that determines the semi-circle or a part of the semi-circle.
The end point of a diameter of a circle divides it into two equal parts, and each part is called a semi-circle. So, it is not the diameter, but end points of the diameter that determines the semi-circle or a part of the semi-circle.
Question 42 Marks
The diameter of a circle is 14cm, find its radius.
Answer
View full question & answer→The radius of a circle is half of its diameter.
Therefore, the radius $=\frac{\text{diameter}}{2}$
$\text{Radius}=\frac{14}{2}=7\text{cm}$
Therefore, the radius $=\frac{\text{diameter}}{2}$
$\text{Radius}=\frac{14}{2}=7\text{cm}$
Question 52 Marks
Given a circle with centre O and radius 2.5cm, what is the length of the longest chord of the circle.
Answer
View full question & answer→The diameter of a circle is its longest chord. The diameter of a circle is twice of its radius.
Length of the longest chord is, 2 × 2.5 = 5cm
Length of the longest chord is, 2 × 2.5 = 5cm