Turn on thread page Beta
    • Thread Starter
    Offline

    9
    ReputationRep:
    Will someone please help me with this question? Name:  381DECEC-6C4A-40A9-8565-B1346AB09D07.jpg.jpeg
Views: 8
Size:  27.6 KB

    I am stuck on 8 b

    Many thanks in advance!
    Posted on the TSR App. Download from Apple or Google Play
    • Thread Starter
    Offline

    9
    ReputationRep:
    I keep getting 321° to the nearest degree by subtracting B from A and getting 4i-5j then working out the bearing from that. Tan theta= 4/5 thus the angle is 51.34+ 270= 321°. However, the answers of the back of the book state that the angle is 303°.

    What have I done incorrectly?
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    11
    ReputationRep:
    (Original post by GCSE pupil)
    I keep getting 321° to the nearest degree by subtracting B from A and getting 4i-5j then working out the bearing from that. Tan theta= 4/5 thus the angle is 51.34+ 270= 321°. However, the answers of the back of the book state that the angle is 303°.

    What have I done incorrectly?
    There's something strange in your working, as [email protected] = 4/5 leads to @ = 38.66 deg. However, this angle of 38 deg is measured anticlockwise from North, so the clockwise bearing, again from North, is 360 - 38.66 = 321 deg. So I think the bearing of A from B is indeed 321 deg, but you have arrived at that answer via a strange route!
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 12, 2018

1,162

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should universities take a stronger line on drugs?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.