# IGCSE Mathematics Paper-1: Specimen Questions with Answers 314 - 318 of 324

## Question 314

### Write in Short

Find the area of the quadrilateral ABCD.

### Explanation

• Coordinates of the quadrilateral are:

## Question 315

### Write in Short

The point P is marked on the grid below. Draw the vector PQ on the grid

### Explanation

If zero, line segment from P to

Or to

A line through P and

Calculate

Here given the

## Question 317

Edit

### Write in Short

Seven people were asked to guess the number of beans in a jar. Their guesses were

195, 172, 169, 145, 181,260, 159

Find the median.

### Explanation

1. In a data set of
2. The sorted order becomes
3. The median is the number in the middle
4. The median value is 172.

## Question 318

### Write in Short

The formula for the perimeter, P of a rectangle with length L and width W is make a the subject of the formula.

### Explanation

• The perimeter of a rectangle is given by the following formula:

• To solve this formula for W

Subtract 2 L from both sides of the equation

Divide both sides of the equation by 2

Thus given that the perimeter of a rectangle is defined by

Then its width (W) is given by

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