Question

Prove experimentally that the sum of three angles of a triangle is equal to two right angles.​

Answer 1

ANSWER

As we know that the sum of all the three angles of a triangle is 180

∘

and a right angle is 90

∘

.

Number of right angles in a triangle =

90

∘

180

∘

=2

Hence proved.

Say X= smaller acute angle in right triangle

4X= larger acute angle

90

∘

= right angle

x+4x+90

∘

=180

5x=90

∘

x=18

∘

4x=72

∘

Answer 2

the sum of angle is always 180°

Step-by-step explanation:

If one angle is 90°×2 =180°

the sum of angle of triangle always 180°