1) An acute angle is a) less than 90∘ b) more than 90∘ c) more than 180∘ 2) An obtuse angle is a) less than 90∘ b) more than 90∘ c) more than 180∘ 3) A right angle is a) less than 90∘ b) more than 180∘ c) 90∘ 4) A Straight angle is a) more than 180∘ b) 180∘ c) less than 90∘

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