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

## Question number: 206

Short Answer Question▾

### Write in Short

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

A prime numbers

### Explanation

A prime number is a whole number greater than 1 whose only factors are 1 and it self.

A factor is a whole numbers that can be divided evenly into another number.

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 number: 207

Short Answer Question▾

### 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 number: 208

Short Answer Question▾

### Write in Short

When , find the value of

### Explanation

Here

## Question number: 209

Short Answer Question▾

### 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 number: 210

Short Answer Question▾

### Write in Short

When , find the value of

### Explanation

Here given the

## Question number: 211

Short Answer Question▾

### 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