# IGCSE Mathematics Paper-1: Specimen Questions with Answers 260 - 264 of 324

## Question number: 260

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### Write in Short

The diagram shows a ladder, AB standing up against a palm tree. The ladder is 12 meters long and its base is 4 meters from the tree.

Calculate how high up the tree the ladder reaches.

### Explanation

Here using as Pythagoras theorem

m

## Question number: 261

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### Write in Short

The frequency of radio waves (F) is connected to the wavelength by the formula .

Calculate the value of F when =2000.

### Explanation

• Here given the =2000

## Question number: 262

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### Write in Short

x is an integer between 50 and 80.

Write down the value of x when it is

An even square number

### Explanation

• x is an integer between 50 and 80

• even square number will be 64

## Question number: 263

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### Write in Short

Write 45 % as a fraction in its lowest terms.

### Explanation

• Here given the 45%

• The fraction are

## Question number: 264

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### Write in Short

The height, h meters, of a telegraph pole is 15 meters correct to the nearest meter. Complete the statement about the value of h.

### Explanation

• The keywords here are to the nearest meter.

• Basically, the height is rounded to the nearest meter, which is 15, so look at what the height could’ve been.