Question

1. Fill in the blanks.
(i) A triangle cannot have more than________
right angle.
(ii) The sum of all angles of a triangle is_________
right angles.
(iii) A triangle has at least_______
acute angles.
(iv) In a right-angled triangle, the side opposite to 90° is called______
(v) The angles of a right-angled isosceles triangle are________
and________
(vi) Each angle of an equilateral triangle is________
(vii
) Exterior angle of a triangle =________ interior opposite angles.
(viii) In a triangle, angles opposite to equal sides are______​

Answer 1

Answer:

one

180°

two

hypotenuse

90°and equal angles are 45°

same

sum of 2 interior opposite angles

equal

Answer 2

1)A triangle cannot have more than $\pink{one}$ right angle.

2)The sum of all angles of a triangle is $\pink{180°}$

3)A triangle has at least $\pink{90°}$ acute angles.

4)In a right-angled triangle, the side opposite to 90° is called $\pink{hypotenuse}$

5)The angles of a right-angled isosceles triangle are $\pink{45°}$

6)Each angle of an equilateral triangle is $\pink{equal}$

7)Exterior angle of a triangle =$\pink{two}$ interior opposite angles.

8)In a triangle, angles opposite to equal sides are $\pink{isosceles}$