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Secondary 1 | Maths
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Secondary 1 chevron_right Maths chevron_right Singapore

Please please please help me ASAP if not my teacher will scold , thanks you so much :):)::)

Date Posted: 1 month ago
Views: 36
AC Lim
AC Lim
1 month ago
Answer = 180°

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AC Lim
Ac Lim's answer
7907 answers (A Helpful Person)
Hope this helps
∠GHB = ∠a + ∠d (exterior angle of triangle = sum of two interior opposite angles. The relevant triangle is triangle AHB)
∠HGB = ∠e + ∠c (same property. The relevant triangle is triangle CGE)
∠GHB + ∠HGB + ∠b = 180° (angle sum of triangle GHB)
So ∠a + ∠d + ∠e + ∠c + ∠b = 180°
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J
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732 answers (A Helpful Person)
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sstrike
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