This concept which I’m discussing in this question is common in E-Maths Paper 1.
Just pay attention that we’re using difference in temperatures compared to height of mountain.
General knowledge: As we ascend the mountain, the temperature drops. In other words, the higher you’re on a mountain, the colder it gets.
I hope you find the step by step solution easy to understand.

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Line is part of us, in almost everything you see.
You must understand
- what equation of line is,
- how to find gradient,
- how to find the x and y intercepts,
- what’s the relationship between a pair of parallel lines, (perpendicular lines are out of syllabus for E-Maths 4016)
- how to write the equation of line given the diagram and lastly,
- how to draw a line.
Do you love this topic on straight lines? Leave me your thoughts and reasons for your love/hate relationship toward lines.

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- Do you have problems writing a pair of similar triangles in the correct order?
- Do you have the correct strategies and approach to prove any congruent figures quickly and easily?
- Do you have problems understanding this topic on Similarity and Congruency because you think that you can’t rotate the figures mentally while your classmates seem to have that ‘power’?
- Do you have challenges in finding ratio of areas or volumes in Vectors, Mensuration?
- Is Similarity and Congruency simply just too much for your brain?
If your answer is yes, for any of the questions. I can help!
I have many students just like you! They dislike this topic as it is visually challenging for them, the concepts are being tested again and again in other E-Maths topics, they don’t know how to apply what they have learnt to questions!
All your problems can be solved!
During the March Holidays, I’m conducting the Similarity & Congruency Mastery Workshop and this is what you will learn:
- the tests for proving similarity or congruency
- the dummy-proof way to name a pair of similar or congruent figures quickly and easily (without any mental rotation required)
- the way to understand ratio of area or volume of similar figures (instead of just rote memorization)
- putting basic concepts into application (extremely important for students who want to score ‘A’ for Maths)
To find out if you require this workshop, I have prepared a Pre-Review [Download here] for you to work on. It takes 15 minutes and answers are provided for you to check against your solution.
For Secondary 4 students, this workshop will prepare you for your GCE ‘O’ Levels E-Maths exams in 8 months time!
For Secondary 3 (Secondary 1-2 included) students, you’re most welcome to attend too!
Online Register here.
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