1) An acute angle is a) an angle less than 90∘ b) an angle more than 90∘ c) an angle more than 180∘ d) an angle more than 360∘ e) 90∘ 2) An obtuse angle is a) an angle less than 90∘ b) an angle more than 90∘ c) an angle more than 180∘ d) an angle more than 360∘ e) 90∘ 3) A right angle is a) an angle less than 90∘ b) an angle more than 90∘ c) an angle more than 180∘ d) an angle more than 360∘ e) 90∘ 4) Angles on a straight line add up to a) 360∘ b) 240∘ c) 70∘ d) 90∘ e) 180∘ 5) Angles in a right angle add up to a) 360∘ b) 240∘ c) 70∘ d) 90∘ e) 180∘

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