wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Find the value of x in the following diagram given that the horizontal lines are parallel to each other:
[4 MARKS]

Open in App
Solution

Properties: 2 Marks
Steps: 1 Marks
Result: 1 Mark

In the given triangle,
Two sides are equal and the angle made by joining them is 90o.
Let the other angles be y ( equal sides have equal angles opposite to them)
For the given triangle,
Sum of all angles = 180o
Or, y + y + 90o = 180o
Or, 2y = 180o - 90o
Or, y = 90o2 = 45o

The two horizontal lines are parallel to each other.
X = 45o + y ( interior alternate angles are equal)
Or, X = 45o + 45o = 90o

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Finding unknown angles
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon