Mr Ang's answer to Michael's Secondary 4 E Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Kindly verify the workings eh, thanks.
Date Posted:
3 years ago
may i ask, for the first part, what does rt mean?
Under "Circle Properties", since BD is a diameter (there will be a semicircle), then angle DAB = 90 with reason "right angle in a semicircle".
Similarly angle DCB = 90 with the same reasoning. You could refer back to Sec 3 textbook for in depth details.
Hope this clarifies eh.
Similarly angle DCB = 90 with the same reasoning. You could refer back to Sec 3 textbook for in depth details.
Hope this clarifies eh.
360 Tutoring Program