Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Primary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
number 7 . please help me
Date Posted: 7 years ago
Views: 483
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
I'm confused as to why you could make all the scribbling in pencil but not able to calculate x.
You know that an angle in a regular pentagon is 108, which means you know the polygon angle formula. You know that the other angle is 72 because of interior angles between 2 parallel lines.
All that is left is actually just using 360 - 120 - 72 - 108 = 60 (using the polygon angle formula), then using 108 - 60 = 48. x = 48.
Also, this is P1 math??
You know that an angle in a regular pentagon is 108, which means you know the polygon angle formula. You know that the other angle is 72 because of interior angles between 2 parallel lines.
All that is left is actually just using 360 - 120 - 72 - 108 = 60 (using the polygon angle formula), then using 108 - 60 = 48. x = 48.
Also, this is P1 math??
Date Posted:
7 years ago
360 Tutoring Program