Advertisements
Advertisements
Question
Construct the 135° angle, using ruler and a pair of compass only.
Solution
Steps of construction:
To construct an angle of 135°.
- Draw an angle BOA = 90° at point O of given line AC.
- Bisect the angle BOC on the other side of OB, which is also 90°
- Thus, ∠BOD = ∠COD = 45°
And, ∠AOD = 90° + 45° = 135°
APPEARS IN
RELATED QUESTIONS
In your note-book copy the following angle using ruler and a pair compass only.
Construct the 90° angle, using ruler and a pair of compass only.
Construct the 30° angle, using ruler and a pair of compass only.
Construct the 15° angle, using ruler and a pair of compass only.
Draw a line segment AB = 7cm. Mark a point Pon AB such that AP=3 cm. Draw perpendicular on to AB at point P.
Draw a line segment OP = 8cm. Use set-square to construct ∠POQ = 90°; such that OQ = 6 cm. Join P and Q; then measure the length of PQ.
In the following figure, AB is parallel to CD; find the values of angles x, y and z:
In the following figures, PQ is parallel to RS. Find the angles a, b and c:
Two straight lines are cut by a transversal. Are the corresponding angles always
Two straight lines are cut by a transversal so that the co-interior angles are supplementary. Are the straight lines parallel?