hard question for line and angles maths class 9 ?
Answers
In the given figure, AOC is a line, find x.
2. In the given figure, intersect at O.
(a) Determine y, when x = 60°. (b) Determine x, when y = 40°.
3. In the given figure, lines Ab, CD and EF intersect at O.
Find the measure of ∠AOC, ∠COF.
4. The exterior angles obtained on producing the base of a triangle both ways are 100° and 120°. Find all the angles.
5. ΔABC is right angled at A and AL ┴ BC. Prove that ∠BAL = ∠ACD.
6. If two parallel lines are intersected by a transversal, prove that the bisectors of the two pairs of interior angles enclose a rectangle.
7. The angles of a triangle are arranged in ascending order of magnitude. If the difference between two consecutive angles is 10°, find all the three angles.
8. In the given figure, POQ is a line. Ray is another ray lying between rays and Prove that
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