area using apothem (a) pic below
@Directrix
do you know what mean ,,regular polygon" ? for example in case of number 8. ?
regular polygon all angle = and all sides are =
exactly - nice - so in case of exercise 8. what you know about this triangle ?
wait what does apothem mean
please answer my question firstly
the angles will be 90 deg on both sides
a triangle with equale sides and equal angles measure - what is the name of same triangle ?
how many is the sum of angles of a triangle ?
a triangle= 180 deg I believe
yes correct so divide it on 3 angles how many will have one angle from this triangle than every 3 are equale ?
60?
yes sure so what you know - what is the name of triangle with angles 60 degree - equale measure angles and equal length of sides ?
equilateral triangle all sides =
exactly - nice so with knowladges now than you check this image with this equilateral triangle what you see - what are this apothemes for triangle angles ?
30 Im pretty sure that is wrong lol
what is this 30 ?
wait I'm confused what part of the triangle Im I suppose to be solving
so you dont like answer my questions ?
i like help you understanding all,every steps how you can solving same exercises
I love answering questions but I cant answer if I dont understand and sorry I have to go bye
do you have learned about bisectors ?
yes I believe I have
so these apothemes bisect these angles in two equale parts so what you have wrote above this 30 degree is correct bc. one bisected angles has 30 degree - do you understand it now ?
can i continuing with you ?
so with this knowladge you know it sure that angle 3 how many degree has - yes ? 60 biescted equal how many ?
please collaborate - we can ending this nr 8 imediatly
so this angle nr 3 has measure of 60/2 = 30 and than you see on the other part this angle bisected will have 30 degree too so 30+30=60 but you know that the sum of angles of a triangle is 180 so than angle 2 will have measure of 180-60=120 degree ok. ?
Alright I understand that it makes sense and if I don't answer it's because I'm at a meeting
do you like continue it now ?
so bc. the corner angles are equale so from this result that the central angles are equal twoo - so than you know that the measure of angle 2 is 120 degree so from this result that the measure of angle 1 will be 120 degree too hope you understand it this too same before
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