If exactly two sides of the triangle are equal- then the triangle is -isoscelesequilateralscaleneright-angled

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Standard VI

Mathematics

Triangles Based on Sides

If exactly tw...

Question

If exactly two sides of the triangle are equal, then the triangle is ___.

isosceles

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equilateral

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scalene

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right-angled

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Solution

The correct option is A isosceles
If all the sides of a triangle are distinct, then it is called a scalene triangle.

If exactly two sides of a triangle are equal, then it is known as an isosceles triangle.

If all three sides of a triangle are equal, then it is equilateral.

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Similar questions

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.

Q. Which of the following statements are true and which of them are false?

(i) All squares are congruent.
(ii) If two squares have equal areas, they are congruent.
(iii) If two figures have equal areas, they are congruent.
(iv) If two triangles are equal in area, they are congruent.
(v) If two sides and one angle of a triangle are equal to the corresponding two sides and angle of another triangle, the triangle are congruent.
(vi) If two angles and any side of a triangle are equal to the corresponding angles and the side of another triangle then the triangles are congruent.
(vii) If three angles of a triangle are equal to the corresponding angles of another triangle then the triangles are congruent.
(viii) If the hypotenuse and an acute angle of a right triangle are equal to the hypotenuse and the corresponding acute angle of another right triangle then the triangle are congruent.
(ix) If the hypotenuse of a right triangle is equal to the hypotenuse of another right triangle then the triangles are congruent.
(x) If two triangles are congruent then their corresponding sides and their corresponding angles are congruent.

Q. If exactly two sides of a triangle are equal, then it is called a/an _______.

Q. If exactly two sides of the triangle are equal, then the triangle is ___.

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If exactly two sides of the triangle are equal, then the triangle is ___.

The correct option is A isoscelesIf all the sides of a triangle are distinct, then it is called a scalene triangle. If exactly two sides of a triangle are equal, then it is known as an isosceles triangle. If all three sides of a triangle are equal, then it is equilateral.

The correct option is A isosceles
If all the sides of a triangle are distinct, then it is called a scalene triangle.

If exactly two sides of a triangle are equal, then it is known as an isosceles triangle.

If all three sides of a triangle are equal, then it is equilateral.