Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Geometry
One Answer Below
Anyone can contribute an answer, even non-tutors.
Confused with the second part
Date Posted: 3 years ago
Views: 219
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The trick is to draw an identical vertical line that is also 4cm away from the vertical dotted line (its the circle's diameter) and a horizontal line that is also 6cm away from the horizontal dotted line (also a diameter).
Notice that the unshaded parts and shaded parts have A,B,C and D in common. The only difference is that the shaded part has 4 more rectangles in the middle , each 4cm by 6cm.
Difference is therefore the arra of 4 rectangles = 4 x 6cm x 4cm = 96cm²
Notice that the unshaded parts and shaded parts have A,B,C and D in common. The only difference is that the shaded part has 4 more rectangles in the middle , each 4cm by 6cm.
Difference is therefore the arra of 4 rectangles = 4 x 6cm x 4cm = 96cm²
Date Posted:
3 years ago
Comment if you have any doubts
Thank you ^^
Welcome
360 Tutoring Program