Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Geometry
3 Answers Below
Anyone can contribute an answer, even non-tutors.
Need help
Date Posted: 2 years ago
Views: 555
There is one overlap for every 2 adjacent circles.
Total there are 3 overlaps. The area of 3 overlaps is 3 × 30cm² = 90cm²
Area of entire figure = area of 4 circles - area of 3 overlaps
= 4πr² - 90cm²
= 4 × 22/7 × 7cm × 7cm - 90cm²
= 616 cm² - 90cm²
= 526 cm²
Total there are 3 overlaps. The area of 3 overlaps is 3 × 30cm² = 90cm²
Area of entire figure = area of 4 circles - area of 3 overlaps
= 4πr² - 90cm²
= 4 × 22/7 × 7cm × 7cm - 90cm²
= 616 cm² - 90cm²
= 526 cm²
Then subtract the 3 shaded areas to get the unshaded area
= 526cm² - 90cm²
= 436cm²
More directly, this can be summarised as :
Unshaded Area = area of 4 circles - area of 6 shaded parts
= 526cm² - 90cm²
= 436cm²
More directly, this can be summarised as :
Unshaded Area = area of 4 circles - area of 6 shaded parts
See 3 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
similar Q
Date Posted:
2 years ago
154 - 30 = 124
The final answer should be 436cm²
The final answer should be 436cm²
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
mistakes in the earlier post. Pls ignore
this is the correct one
Thx J
this is the correct one
Thx J
Date Posted:
2 years ago
360 Tutoring Program