Advertisements
Advertisements
Question
Draw ∠ABC = 120°. Bisect the angle using ruler and compasses. Measure each angle so obtained and check whether or not the new angles obtained on bisecting ∠ABC are equal.
Solution
Measuring PQ = 60°
Yes, angles obtained in ∠ABC bisecting are equal.
APPEARS IN
RELATED QUESTIONS
The adjoining figure shows two straight lines AB and CD intersecting at point P. If ∠BPC = 4x – 5° and ∠APD = 3x + 15°; find:
(i) the value of x.
(ii) ∠APD
(iii) ∠BPD
(iv) ∠BPC
In your note-book copy the following angle using ruler and a pair compass only.
Construct the 60° angle, using ruler and a pair of compass only.
Construct the 120° angle, using ruler and a pair of compass only.
Draw a line segment OA = 5 cm. Use set-square to construct angle AOB = 60°, such that OB = 3 cm. Join A and B; then measure the length of AB.
Draw ∠PQR = 75° by using set- squares. On PQ mark a point M such that MQ = 3 cm. On QR mark a point N such that QN = 4 cm. Join M and N. Measure the length of MN.
In the following figures, PQ is parallel to RS. Find the angles a, b and c:
In the case given below, find the value of x so that POQ is straight line
In the case given below, find the value of x so that POQ is straight line
Without using set squares, construct angle ABC = 60° in which AB = BC = 5 cm. Join A and C and measure the length of AC.