Notes pages 6–8 bisects chord 3 3 arc 40o 40o

equidistant center 71o 30 30 𝟏𝟔 If XL = XM, then WV = YZ 34 x 16 30 34 5 equidistant 5 10 2 2 5 center 5 If XL = XM, then WV = YZ 34 x 71o 16 30 34 30 30 30 𝒂 𝟐 + 𝒃 𝟐 = 𝒄 𝟐 30 71 𝟏𝟔 34 – = 16 18 𝒙 𝟐 + 𝟑𝟎 𝟐 = 𝟑𝟒 𝟐 whole – part – 𝟑𝟎 𝟐 – 𝟑𝟎 𝟐 71 𝒙 𝟐 = 𝟐𝟓𝟔 𝒙= 𝟐𝟓𝟔 𝒙= 𝟏𝟔

45 12 12 12 12 45 12 12 12 12 + 12 = 24 45 45 45 + 45 = 90 45

vertices (corners) vertices

= 3(45) = 135o = 120o x = 120o x 45o = 45o x = 120o = 135o ___ + ___ + ___ + ___ = 3x 3x x x 360 3x = 360 x = 120o 8x = 360 3 3 8 8 x = 45

Homework pages 5–6