Hi, i urgently need help with this subject, i need to complete it for a course i am wanting to enrol in, but maths wasn't for me, now i am stuck. i need help with this question,
Find the area of the triangle with the lengths 2.87 m, 3.69 m and 4.58 m
565 mm, 823 mm and 1.08 m
i have no idea how to do this,
can someone please help me.
Hello, seran!
If you can't handle Heron's Formula,
. . then you must know some Trigonometry.
We have a triangle:Find the area of the triangle with the lengths 2.87 m, 3.69 m and 4.58 m
565 mm, 823 mm and 1.08 m . ← What are these?We are given: .Code:C o * * b * * a * * * * * * A * * * * * * * B c
We can find angle with: .
Then the area is: .
If all this is meaningless to you,
and you're really "hopless in math",
. . . . just skip the problem.
Hi seran,
If you need this subject for a course you want to enroll in,
why is this topic important for the course ?
Will you have difficulty on the course without it ?
Try the question, you might be surprised how easy it can get.
As Soroban showed,
If you have the 3 sides of a triangle,
you can find any angle using the Law of Cosines, or Cosine Rule
Then,
you can find the area of a triangle if you have all 3 dimensions at any of the 3 corners,
using the triangle area formula, for a triangle for which you are not given the perpendicular height and base.
I want to study architecture and one of the pre-req is that i have to have completed maths in year 12, which i never did, so the course i will be doing am assuming won't involve algebra etc, just measure etc. i haven't done maths since 1993, thats 17 years. so really nothing is sinking in and is getting really depresed cause i feel so stupid. thanks all for your helps.
Hi, thank you all, ooo i feel stupid, no i don't know trig, like i mentioned i did maths about 17 years ago, and really never paid attention to the teacher because maths was never my best friend. so i didnt take it up in year 12 either. Now i want to study from home architecture and one of the pre-req is that i have to have completed maths in year 12. Or to do this subject, i think i need a private tutor.
You're in for a suprise! You're gonna need a lot of math there, buddy!
Check it out.
Architecture Degree Program Requirements