# IGCSE Mathematics Paper-1: Specimen Questions with Answers 105 - 108 of 175

## Question number: 105

Short Answer Question▾

### Write in Short

Write down the value of x.

### Explanation

Here,

, so here, we need same fraction in right side as left side.

So,

## Question number: 106

Short Answer Question▾

### Write in Short

Solve the equation

### Explanation

Here, equation is

## Question number: 107

Short Answer Question▾

### Write in Short

The diagram shows a regular octagon and a rectangle. Calculate the values of .

### Explanation

Here, octagon is regular.

So, we can find it’s exterior angle by using the formula , where n = number of sides.

In octagon number of sides = 8, so **exterior angle** =

So, as shown in figure, its **interior angle **.

Now, for angle :

(I) As shown in figure:

**OR**

(II) As shown in figure, total angle is , so

## Question number: 108

Short Answer Question▾

### Write in Short

Choose from the symbols to complete the following statements.

(a)

(b)

### Explanation

Here,

(a) First statement is

- So, and. So, .
- So,

(b) Second statement is .

- So,
- So,

### Browse Mathematics (0580)

Choose Paper: