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Which of the following statements are true (T) and which are false (F):(i) Sum of the three angles of a triangle is 180°.(ii) A triangle can have two right angles.(iii) All the angles of a triangle can be less than 60°(iv) All the angles of a triangle can be greater than 60°.(v) All the angles of a triangle can be equal to 60°.(vi) A triangle can have two obtuse angles.(vii) A triangle can have at most one obtuse angles.(viii) If one angle of a triangle is obtuse, then it cannot be a right angled triangle.(ix) If one angle of a triangle is obtuse, then it cannot be a right angled triangle.(x) An exterior angle of a triangle is less than either of its interior opposite angles.(xi) An exterior angle of a triangle is equal to the sum of the two interior opposite angles. |
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Answer» Which of the following statements are true (T) and which are false (F): (i) Sum of the three angles of a triangle is 180°. (ii) A triangle can have two right angles. (iii) All the angles of a triangle can be less than 60° (iv) All the angles of a triangle can be greater than 60°. (v) All the angles of a triangle can be equal to 60°. (vi) A triangle can have two obtuse angles. (vii) A triangle can have at most one obtuse angles. (viii) If one angle of a triangle is obtuse, then it cannot be a right angled triangle. (ix) If one angle of a triangle is obtuse, then it cannot be a right angled triangle. (x) An exterior angle of a triangle is less than either of its interior opposite angles. (xi) An exterior angle of a triangle is equal to the sum of the two interior opposite angles. |
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