## Question

primary 5 | Maths | Whole Numbers

Anyone can contribute an answer, even non-tutors.

##### Leow Wen Ze

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Pls help to solve this. Thanks

Date Posted: 1 year ago
Views: 181
Josephine
1 year ago
Pattern for circles is 4 x (n-1) + 1 where n is your figure number

Pattern for triangle is nxn x 4 where n is your figure number
Leow Wen Ze
1 year ago
Hi, is this a standard formula?
Josephine
1 year ago
No it is not. The formula is deduced from the pattern. Different pattern have different formula
Leow Wen Ze
1 year ago
Thanks for the guidance.

clear {{ downvoteCount * -1 }} Downvotes
1st
It might have other method... This for your reference!
Date Posted: 1 year ago
Leow Wen Ze
1 year ago
Sorry, can u explain on the method used?
AC Lim
1 year ago
Ha ha.. I didn’t know the method.
Normally we Try to solve using formula.
Like triangle. .. the formula is (nxn) x4
Example
Figure 1, (1x1) x4=4
Figure 2, (2x2) x4=16
Figure 3, (3x3) x4= 36
Figure 4, (4x4) x4 = 64
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