Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.8>Q 8

HARD

Upper Secondary: IGCSE

IMPORTANT

Earn 100

Find the area of regular octagon with side $4 cm$ .

Important Questions on Scale Drawings, Bearings and Trigonometry

HARD

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.8>Q 9

Find the area of regular pentagon with side

2 a m

.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.8>Q 10

If the area of a regular pentagon with side

2 a

meters is

k a^{2} m^{2}

, then find the value of

k

. (Express your answer correct up to three decimal places)

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.8>Q 11

Find the area of a regular polygon with

n

sides, each of length

2 a

metres.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.9>Q 1

Write the following in the form of another angle between $0 °$ and $180 °$ .

$- \cos 120 °$

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.9>Q 1

Write the following in the form of another angle between $0 °$ and $180 °$ .

$\sin 35 °$

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.9>Q 1

Write the following in the form of another angle between $0 °$ and $180 °$ .

$\cos 136 °$

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.9>Q 1

Write the following in the form of another angle between $0 °$ and $180 °$ .

$\sin 170 °$

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 15 - Scale Drawings, Bearings and Trigonometry>Exercise 15.9>Q 1

Write the following in the form of another angle between $0 °$ and $180 °$ .

$\cos 88 °$