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1 vote
ASAP HELP WITH NUMBER 7!!

CORRECT ANSWERS PLS!


(Random ANSWERS gets moderated)

ASAP HELP WITH NUMBER 7!! CORRECT ANSWERS PLS! (Random ANSWERS gets moderated)-example-1

2 Answers

4 votes
whyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy.....jk um, all I can say is that lines equal to 180 which means if 120 is the exterior angles then you should be able to find the interior ones as well which might help you explain. you can also bring up the law that all interior angles of a triangle add up to 360 because...laws exist for a reason. other than that IDK
User Gpojd
by
7.7k points
3 votes
External angles are : ∠EAB + ∠CBF x ∠ACD


∠EAB = 180°- ∠BAC
∠CBF = 180°- ∠CBA
∠ACD = 180°- ∠ECB

Add up all external angles as well as their equivalent:

∠EAB + ∠CBF x ∠ACD = 540° - (∠BAC + ∠CBA + ∠ECB)

But (∠BAC + ∠CBA + ∠ECB) = 180° (sum of angles in a triangle), then

∠EAB + ∠CBF x ∠ACD = 540° - ( 180°)

∠EAB + ∠CBF x ∠ACD = 360°
User Amirah
by
8.3k points
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