Maths- The Triangle and its Properties

30 Degree ✘ 45 Degree ✘ 40 Degree ✘ 60 Degree ✔

65 Degree, 55 Degree ✘ 55 Degree, 45 Degree ✘ 45 Degree, 35 Degree ✘ 60 Degree, 60 Degree ✔

80 Degree ✘ 85 Degree ✘ 75 Degree ✘ 70 Degree ✔

70 Degree ✘ 90 Degree ✘ 80 Degree ✘ 100 Degree ✔

30 Degree ✘ 45 Degree ✘ 90 Degree ✘ 60 Degree ✔

120 Degree ✘ 110 Degree ✘ 115 Degree ✘ 125 Degree ✔

80 Degree ✘ 60 Degree ✘ 40 Degree ✘ 180 Degree ✔

90 Degree ✘ 30 Degree ✘ 60 Degree ✘ 120 Degree ✔

The sum of the lengths of any two sides of a triangle is less than the third side. ✘ In a right-angled triangle, the square on the hypotenuse = sum of the squares on the legs. ✘ If the Pythagorean property holds, the triangle must be right-angled. ✘ The diagonal of a rectangle produce by itself the same area as produced by its length and breadth ✔

A triangle can have all the three angles equal to 60 Degree. ✘ A triangle can have all the three angles greater than 60 Degree. ✘ The sum of any two angles of a triangle is always greater than the third angle. ✘ The difference between the lengths of any two sides of a triangle is greater than the length of the third side ✔