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primary 6 | Maths | Geometry
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Norain
Norain

primary 6 chevron_right Maths chevron_right Geometry chevron_right Singapore

Pls help

Date Posted: 3 months ago
Views: 30
J
J
3 months ago
The curved lengths of the semicircles can be combined to form the circumference of 1 circle.

Circumference = 2πr
= 2 x 3.14 x 3cm
= 18.84cm

The straight lengths of the semicircles are equal to diameter of circle - 1cm

Diameter = 3cm x 2 = 6cm
6cm - 1cm = 5cm

There are two straight lengths.
So 5cm x 2 = 10cm

Total = 10cm + 18.84cm = 28.84cm

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PNG CHU LING
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