Question

calculate the size of each lettered angle in the following figure​

Answer 1

136° + z = 180°

z =180° + 136°

z = 44°

(we know sum of all 3angles is 180°)

70°+55°+x = 180°

125° + x = 180°

x = 180° -125°

x= 55°

z + y + x = 180°

44° + y +55°=180°

y + 99 =180°

y =180°- 99°

y=81°

Therefore,x=55°

y=81°

z=44°

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