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(a) Identify three triangles in the figu...

(a) Identify three triangles in the figure. (b) Write the names of six line segments. (c) Which two triangles have `< B`as common?

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a) The three triangles can be identified as `triangle ABD, triangle ADC and triangle ABC`.
b) The seven angels are `angleABD, angleBDA, angleADC, angleDCA, angleCAB, angleCAD and angleDAB`
c) The six-line segments are `AB, AC, BC, BD, DC and AD.`
d) `triangle ABD and triangle ABC` have `angleB` as common.
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