MATHS TRUE / FALSE

In a triangle, the sum of squares of two sides is equal to the square of the third side. (False)
Correct : Only in right triangle, the sum of squares on two sides is equal to the square on the hypotenuse.

An altitude of a triangle always lies outside the triangle. (False)
Correct : Not always, but in some cases only.

A median of a triangle always lies inside the triangle. (True)

Each acute angle of an isosceles right-angled triangle measures 60°. (False)
Correct : Each acute angle will be of 45°, not 60°.

Every isosceles triangle must be an equilateral triangle. (False)
Correct : An isosceles triangle has any two sides equal but an equilateral triangle has three sides equal.

Every equilateral triangle is an isosceles triangle. (True)

If all the three sides of a triangle are equal, then it is called a scalene triangle. (False)
Correct : It is an equilateral triangle.

In a right-angled triangle, the sum of two acute angles is 90°. (True)

If an exterior angle of a triangle is a right angle, then each of its interior opposite angles is acute. (True)

A triangle can have all three angles with a measure of less than 60°. (False)
Correct : The sum of three angles = 180°

A triangle can have all three angles with a measure greater than 60°. (False)
Correct : The sum of three angles = 180°