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primary 6 | Maths | Geometry
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Rin
Rin

primary 6 chevron_right Maths chevron_right Geometry chevron_right Singapore

Please help.

Date Posted: 4 years ago
Views: 206
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angle ABD = 90-60 = 30 ( angles in isos triangle)

angle BDC = 180-60 = 120 (angles in a straight line)

angle y = 180-120-30 = 30 (angles in a triangle )
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siting
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Rin
Rin
4 years ago
Thx!◉‿◉
siting
Siting
4 years ago
no worries :D