Question

If the one angle of a traingle is equal to the sum of other two angle,show that the angle is a right angled

Answer 1

$according \: to \: question \\ x = y + z \\ x + y + z = 180 \\ x + x = 180(x = y + z) \\ 2x = 180 \\ x = \frac{180}{2} \\ x = 90 \\ as \: one \: angle \: is \: 90 \: degree \: so \\ it \: is \: a \: right \: angled \: triangle \\ hence \: proved$

Answer 2

Answer: first take an angle to be x and it is giving energy that it is equal to its other two angle take them to be y and z by using angle sum property of triangle.

x +y+z=180

x+x=180 (y+z=x)

2x=180

x=180/2

x=90

hence proved

Step-by-step explanation: plz make me brainliest