Priscilla Ng's answer to yoko ono's Primary 6 Maths Measurement Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Priscilla Ng
Priscilla Ng's answer
806 answers (Tutor Details)
Need to know all the angle properties to help you find angles.

(1) Angles in square and rectangle are 90 degrees

(2) Sum of angles on a straight line is 180 degrees

(3) Sum of angles in a triangle is 180 degree