Question

Q7) Prove Angle sum property for triangle​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

let us take an right angled triangle

here we know that one angle is 90 (given)(1)

the sum of the other 2 angles could not be more than 90° hence

angle a +angle b = 90 ° (2)

from (1). and. (2) we get that the sum of the triangle will be 90°+90° = 180°

HENCE PROVED