1.
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a.
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b.
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c.
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d.
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e.
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f.
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g.
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obtuse
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right
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acute
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obtuse
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straight
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acute
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reflex
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2.
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a. a = 139° (Adj. ∠ s on st. line are supp. )
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b. y = 70° (∠ s at a pt. add to 360°.)
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c. y = 97° (∠ s at a pt. add to 360°.)
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d. a = 70° (Adj. ∠ s on st. line are supp. )
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e. f =113° (∠ s at a pt. add to 360°.)
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f. l = 97° (Vert. opp. ∠ s equal.) m = 83° (Adj. ∠ s on st. line are supp.) n = 83° (Vert. opp. ∠ s equal.)
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g. x = 38° (Vert. opp. ∠ s equal.) y = 142° (Adj. ∠ s on st. line are supp.) z = 103° (Adj. ∠ s on st. line are supp.) |
h. a = 72° (Adj. ∠ s on st. line are supp.)
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