- Option : C
- Explanation : Given, x is the angle which is equal to its complement.

x+x=90°

=> 2x = 90 °=> x = 45 °

and y is the angle which is equal to its supplement.

y+ y=180°

=> 2y =180°

=> y =90°

.". 2x + 3y =2 x45°+ 3 x900= 360°

- Option : A
- Explanation : Anisha uses deductive logic. This type of logic goes from general to specific which is based on premises and if the premises is true, then the reasoning will be valid.

25. Writing proofs in geometry implies

- Option : A
- Explanation : The proof of a mathematical theorem is a logical argument to the statement or justification of truth of the statement.

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