Question

2. Find the circumference of a circle whose diameter is:
(i) 10 m


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Answer 1

Answer:

QUESTION

2. Find the circumference of a circle whose diameter is:

(i) 10 m

ANSWER

The diameter of circle is = 10cm

The radius of circle is = 5cm

(radius = half of diameter)

Circumference =

$2 \times \pi \times r \\ \\ 2 \times \frac{22}{7} \times 5 \: = 31.4cm$

r = radius

Pie value = 22/7.

So the circumference of circle is 31.4cm

I hope it helps you

Answer 2

Answer:

The circumstance of the circle is 31.4 metres.

Step-by-step explanation:

Step 1 :

Since, radius is ½ of the diameter.

So, the radius will be $\sf \frac{10}{2}$ = 5metres.

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Step 2 :

Finding it's circumstance :

Circumstance of a circle is given by :

→ 2πr

• Taking ‘π’ as 3.14
• r (radius) = 5 m.

So,

→ 2 × 3.14 × 5

→ 31.4 metres.

∴ The circumstance of the circle is 3.14 metres ✔

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