Let us define a statement as a sentence that can be judged to be true or false.
Which of the following is not a statement?
(a) 3 + 5 = 7.
(b) Kunal is a tall boy.
(c) The sum of the angles of a triangle is 90°.
(d) The angles opposite to equal sides of a triangle are equal.

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Solution

(b) Kunal is a tall boy.
It cannot be proved in isolation whether Kunal is tall. Kunal can only be a tall boy in comparison with other boys or some other individual for this to be a statement.

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Similar questions

Angles opposite the equal sides of a triangle are equal. True or False

Side opposite the equal angles of a triangle may be unequal. True or False

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 (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.

Q. State 'T' for true and 'F' for false.
(1) In a triangle, the measure of exterior angle is equal to the sum of the measure of interior opposite angles.
(2) The sum of the measures of the three angles of a triangle is

90^{o}

.
(3) A perpendicular is always at 90 to a given line or surface.
(1) (2) (3)

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Let us define a statement as a sentence that can be judged to be true or false. Which of the following is not a statement? (a) 3 + 5 = 7. (b) Kunal is a tall boy. (c) The sum of the angles of a triangle is 90°. (d) The angles opposite to equal sides of a triangle are equal.

(b) Kunal is a tall boy. It cannot be proved in isolation whether ​Kunal is tall. Kunal can only be a tall boy in comparison with other boys or some other individual for this to be a statement.

Let us define a statement as a sentence that can be judged to be true or false.
Which of the following is not a statement?
(a) 3 + 5 = 7.
(b) Kunal is a tall boy.
(c) The sum of the angles of a triangle is 90°.
(d) The angles opposite to equal sides of a triangle are equal.

(b) Kunal is a tall boy.
It cannot be proved in isolation whether Kunal is tall. Kunal can only be a tall boy in comparison with other boys or some other individual for this to be a statement.