# IGCSE Mathematics Paper-1: Specimen Questions with Answers 72 - 75 of 324

## Question 72

### Describe in Detail

Essay▾In a Hospital there are many types of the members and No. of members, which are shown in the table below.

Types of members | No. of Members |

Doctors | 25 |

Nurses | 50 |

Peons | 35 |

Patients | 78 |

Draw a bar chart below to show this data. Show your scale on the vertical axis and label the bars.

### Explanation

## Question 73

### Write in Short

Short Answer▾Choose the following symbols to complete following statements.

(a)

(b)

### Explanation

Here,

(a) First statement is

- So, now convert it into percentage. So, .
- So,

(b) Second statement is

- So,
- So,

## Question 74

### Explanation

- and
- So, sequence from smallest to largest will be:
**.**

## Question 75

### Describe in Detail

Essay▾The diagram shows a square of side 8 cm and four congruent triangles of height 7 cm.

(a) Calculate

(i) The area of one triangular face

(ii) The area of the whole shape

(b) What is this shape, which is a net of a solid?

### Explanation

Here,

(a) (i) The area of triangle: , where, h = height and b = base.

So, here, height h = 7 cm and base will be the side of square so base b = 8 cm

So, area of one triangular face =

(ii) The area of whole shape =

So, area of square =

So, area of whole shape =

(b) The shape is the net of a solid. So, it is called as **Square Pyramid.**

- If there are all equilateral triangles then the pyramid is called as
**Johnson Solid**.