Erfana Beevee Binte Hassan Shariff's answer to jeanie's Secondary 3 E Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Notice that angle FEG is 45deg
Find the area of each part and then subtract accordingly to find the area of shaded part in terms of r. Then find the area of whole figure in terms of r.
Fraction of shaded part
= area of shaded part/area of whole figure
The ‘r’s will get cancelled out.
Find the area of each part and then subtract accordingly to find the area of shaded part in terms of r. Then find the area of whole figure in terms of r.
Fraction of shaded part
= area of shaded part/area of whole figure
The ‘r’s will get cancelled out.
Date Posted:
8 months ago
thanks sm!
360 Tutoring Program