Question

*Find the number of quarter circles used to form a semi-circle.*

1️⃣ 4
2️⃣ 1
3️⃣ 2
4️⃣ 8

Answer 1

Answer:

Option 3 - 2

Step-by-step explanation:

Quarter is when a circle is divided into four equal parts

and semi-circle is when a circle is divided into two parts

so to make semi-circle we need 2 quarters

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Answer 2

Answer:

The number of quarter circles used to form a semi-circle is 3) 2.

Step-by-step explanation:

Let a complete circle be denoted as 1C.

We know that a semi-circle is half a full circle. Therefore, semi-circle =  1C*1/2.

Hence, a semi-circle = (1/2)C

Now, a quarter is denoted by 1/4. So, a quarter circle will be denoted as (1/4)C.

Therefore,

$semicircle = \frac{1}{4}C+ \frac{1}{4}C$

$semicircle = \frac{2}{4}C$

$semicircle = \frac{1}{2}C$

Hence, 2 quarter circles will form a semicircle.

Explanation for incorrect options:

1) 4

Four quarter circles will make one full circle.

2) 1

The one-quarter circle will be a one-quarter circle.

4) 8

Eight-quarter circles will make 2 full circles.

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