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CBSE 9th Mathematics Important Questions/ Worksheet - Lines and Angles
Answer the following
1. If an angle differs from its
complement by 10°, find the angle
2. The supplement of an angle is
one third of itself. Determine the angle and its supplement.
3. Two complementary angles are
such that two times the measure of one is equal to three times measure of the
other. Find the measure of the large angle.
4. If x : y : z = 5 : 4 : 6. if
XOY is a straight line find the values of x, y and z
5. If AB║DF, AD║FG, ∠BAC = 65°, ∠ACB = 55°. Find ∠FGH
6. AB║ED
and ∠ABC = 30°, ∠EDC = 70° then find x°
7. If lines AB, CD and EF
intersect at O. Find the measures of ∠AOC, ∠DOE and ∠BOF
9. In the given figure, ∠PQR = ∠PRQ, then prove that ∠PQS = ∠PRT.
10. Find x and y in the following
figure.
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