In an isosceles triangle, which of the following is not true:

Two angles are always acute

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Two angles are equal

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Two angles are right angles

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Two sides are equal

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Solution

The correct option is C
Two angles are right angles

Two angles are right angles

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Similar questions

In an isosceles triangle, the angles opposite to the equal sides are not equal.

Question 55

Fill in the blanks to make the statement true.

In an isosceles triangle, two angles are always ___

Q. In an isosceles triangle, if the base angles are equal, then sides opposite to these angles are equal.

Which of the following statements are true (T) and which are false (F):

(i) Sides opposite to equal angles of a triangle may be unequal.

(ii) Angles opposite to equal sides of a triangle are equal.

(iii) The measure of each angle of an equilateral triangle is 60°.

(iv) If the altitude from one vertex of a triangle bisects the opposite side, then the triangle may be isosceles.

(v) The bisectors of two equal angles of a triangle are equal.

(vi) If the bisector of the vertical angle of a triangle bisects the base, then the triangle may be isosceles.

(vii) The two altitudes corresponding to two equal sides of a triangle need not be equal.

(viii) If any two sides of a right triangle are respectively equal to two sides of other right triangle, then the two triangles are congruent.

(ix) Two right triangles are congruent if hypotenuse and a side of one triangle are respectively equal equal to the hypotenuse and a side of the other triangle.

State true or false:

If two sides and an angle of a triangle are respectively equal to two sides and an angle of another triangle,then the two triangles are always congruent.

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In an isosceles triangle, which of the following is not true:

The correct option is C Two angles are right anglesTwo angles are right angles

The correct option is C
Two angles are right angles

Two angles are right angles