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Definition of Triangle

The angles of...

Question

The angles of a triangle measure 40°, 110° and 30°. Such a triangle is called a/an _________.

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Solution

If an angle of a triangle is obtuse (more than 90° ), the triangle is called an obtuse angled triangle.

Since the measure of one of the angles of the given triangle is 110°, it is an obtuse angled triangle

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Similar questions

The angles of a triangle are 30°, 40° and 110°. Find the measures of its external angles.

Q. In ΔABC, ∠A = 30°, ∠B = 40° and ∠C = 110°. The angles of the triangle formed by joining the mid-points of the sides of this triangle are

(a) 70°, 70°, 40°

(b) 60°, 40°, 80°

(c) 30°, 40°, 110°

(d) 60°, 70°, 50°

Q. Fill in the blanks:

(i) A right triangle cannot have an ...... angle.
(ii) The acute angles of a right triangle are ...... .
(iii) Each acute angle of an isosceles right triangle measures ...... .
(iv) Each angle of an equilateral triangle measures ...... .
(v) The side opposite the right angle of a right triangle is called ...... .
(vi) The sum of the lengths of the sides of a triangle is called its...... .

Q. The angles of a triangle measure

40^{\circ}

110^{\circ}

30^{\circ}

. Such a triangle is called a/an _____.

The angles of a triangle measure $40^{o}$ , $110^{o}$ and $30^{o}$ . Such a triangle is called a/an _________.

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