Question

Which of the following is not a sector of a circle?
A. Pizza slice
B. Cathedral window
C. Birthday cap
D. Apple pie

Answer 1

Hint: Here we have to find which of the given options is not a sector of a circle. Firstly we will define what a sector of a circle is and what its shape is. Then one by one we will draw the shape of the given options and check which among them is not a sector of a circle and get our desired answer.

Complete step by step answer:
We have to find which among the given options is not a sector of a circle.
As we know, the sector of a circle is a part of a circle which is made up of the arc of the circle along with the two radii of the circle. Sector is made up of one arc and two straight lines and has an angle of its own. It can drawn as follows,

Now we will see the shape of all the options given one-by-one.
A. Pizza Slice
The shape of a pizza slice is as follows,

We can see that the above shape is the same as the shape of the sector of a circle.
B. Cathedral Window
The shape of cathedral window is as follows,

We can see the above shape is a semi circle divided into three parts. It is a sector of a circle.
C. Birthday Cap
The shape of a birthday cap is as follows,

We can see that the above shape is like a conical shape and not a sector of a circle.
So it is not a sector of a circle.
D. Apple pie
The shape of an apple pie is as follows,

We can see that the above shape is of a circle divided into eight parts and it shows a sector of a circle.
So, the correct answer is “Option C”.

Note:
The only way to solve this type of question is draw the figure of the things given and check whether they match the figure stated. A sector is a circular portion of a dick enclosed by two radii and an arc. A sector divides the circle into two regions which are known as major and minor regions (sector). The smaller part is our minor sector and the bigger part is our major sector.