Question
![Find The Value Of X In The Following Diagram. [4 MARKS]...](https://lakshyaeducation.in/quizpics/quiz/content_313.png "Click to Enlarge Image")
Answer: Option A
:
Properties: 1 Mark
Steps: 2 Marks
Result: 1 Mark
According to the question, Sides AB and BC are equal and ∠B is 90°
Let ∠A be y, then ∠ACB will also be y (∵ angle opposite to the equal sides are equal)
In any triangle, Sum of all angles = 180o
Or, y + y + 90o = 180o
Or, 2y = 180o - 90o
Or, y = 90o2 = 45o
X here is an exterior angle to ∠A and ∠B
Sum of opposite interior angles = exterior angle.
Or, y + 90o = X
Or, X = 90o +45o = 135o
Was this answer helpful ?
:
Properties: 1 Mark
Steps: 2 Marks
Result: 1 Mark
According to the question, Sides AB and BC are equal and ∠B is 90°
Let ∠A be y, then ∠ACB will also be y (∵ angle opposite to the equal sides are equal)
In any triangle, Sum of all angles = 180o
Or, y + y + 90o = 180o
Or, 2y = 180o - 90o
Or, y = 90o2 = 45o
X here is an exterior angle to ∠A and ∠B
Sum of opposite interior angles = exterior angle.
Or, y + 90o = X
Or, X = 90o +45o = 135o
Was this answer helpful ?
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