# IGCSE Mathematics Paper-1: Specimen Questions with Answers 206 - 211 of 324

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## Question 206

### Write in Short

An integer n is such that . Write down a value of n which is

A prime numbers

### Explanation

1. A prime number is a whole number greater than 1 whose only factors are 1 and it self.
2. A factor is a whole numbers that can be divided evenly into another number.
3. The find the prime number between 80 to 90 is 83 and 89.
• Here find the square number between 80 to 90
• Here A square number is 81.
• And 81 is between 80 to 90.

## Question 207

### Write in Short

M is the mid-point of AC. Write as a column vector.

### Explanation

Co-ordinates of the mid-point of AC are:

Here coordinates is

The coordinates of the vector are

## Question 208

### Write in Short

When , find the value of

Here

## Question 209

### Write in Short

Choose one of the symbols given above to complete each of the following statements.

When x = 12 and y =-4, then

### Explanation

• Here x = 12 and y =-4
• So,

## Question 210

### Write in Short

When , find the value of

Here given the

## Question 211

### Write in Short

The diagram shows a square tile of side 16 centimeters with 4 identical quarter circles shaded.

Calculate the area of the unshaded region.

### Explanation

The 4 quarter circles combined to from 1 complete circle with radius.

Q-17

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