1 Find the missing angles in the following diagrams. a ............................................... b ............................................... c ............................................... d ............................................... 2 Find all the missing angles in this diagram. Give reasons for your answers. a ..................................................................................................................... b ..................................................................................................................... c ..................................................................................................................... d ..................................................................................................................... 3 Find all the missing angles in this diagram. Give reasons for your answers. a ..................................................................................................................... b ..................................................................................................................... c ..................................................................................................................... 4 Prove that lines AB and CD are parallel. ..................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................... ● 2 13.1 Angle properties of parallel lines 159 a b d 135˚ c 72˚ a b c d 67˚ 148˚ A B C D 32˚ 52˚ 78˚ a b c Guided practice worksheet D Questions are targeted at the grades indicated
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2 13.1 Angle properties of parallel lines - mrvahora · 2 13.2 Proving the angle properties of triangles and quadrilaterals 161A2 Write down a reason after each line of working, e.g.
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1 Find the missing angles in the following diagrams.
a ............................................... b ............................................... c ............................................... d ...............................................
2 Find all the missing angles in this diagram. Give reasons for your answers.
a .....................................................................................................................
b .....................................................................................................................
c .....................................................................................................................
d .....................................................................................................................
3 Find all the missing angles in this diagram. Give reasons for your answers.
a .....................................................................................................................
b .....................................................................................................................
c .....................................................................................................................