Question

Can a triangle have
(i) two right angles?
(ii) two obtuse angles?
(iii) two acute angles?
(iv) each angle more than 60°?
(v) each angle less than 60°?
(vi) each angle equal to 60°?
Fill in the blanks:
(i) A triangle has ...... sides, ...... angles and ...... vertices.
(ii) The sum of the angles of a triangle is .......
(iii) The sides of a scalene triangle are of ............ lengths.
(iv) Each angle of an equilateral triangle measures ......
(v) The angles opposite to equal sides of an isosceles triangle are
(vi) The sum of the lengths of the sides of a triangle is called its ............​

Answer 1

Step-by-step explanation:

Fill in the blanks=

1. 3 sides, 3angles, 3 vertices

2. The sum of angles of triangle is 180 degree.

4. 60 degree

Can a triangle have=

1. No

2. No

3. Yes

Answer 2

1.No

2.No

3.Yes

4.No

5.No

6.Yes

Blanks

1. 3,3and 3 respectively

2.180°

3.All are of different lenghts

4.60°

5.Equal

6.Perimeter