Question

C
Prove that the sum of three angles of a triangle is
180°​

Answer 1

Answer:

Sum of the angles of a triangle = 180°

Step-by-step explanation:

Aim: To prove that the sum of three angles of a triangle is 180°​.

Requirements: Pencil, scale, eraser, pen & protractor (if required)

Procedure:

• Draw a triangle (let it be Δ ABC) of any different sides.
• Draw a line parallel to the Base produced for the tip...
• Mark the angles on the sides of the drawn line as in the image.

Conclusion: As we know that the base & the opposite sides are parallel,  we can say that,

1. ∠w = ∠y (By Alternate Interior angles)
2. ∠v = ∠z (By Alternate Interior angles)

Now,  w + x + v = 180°

⇒ x + y + z = 180°

⇒ Sum of the angles of the triangle is 180°

Result: Proved that the sum of three angles of a triangle is 180°​.

Hope you understood the method I have used...

Answer 2

Step-by-step explanation:

answer refer to the attachment.

answer refer to the attachment.

see the attachment mate