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Year 9 Maths Advanced Properties of Geometric Figures

Triangle Geometry

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Question 1
59198

Find the value of \(a\)

Two triangles meeting at MLines AB and CD cross at M. Triangle AMC has 56 degrees at A and 78 degrees at C; triangle DMB has 62 degrees at D and a degrees at B. 56° 78° 62° a° A C D B M
\(a =\) 
72
1 mark

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