Question

3. Draw angel POQ = 64º. Also draw its line of symmetry.​

Answer 1

Step-by-step explanation:

Here, we will draw 75^{\circ} using a protractor.

We follow these steps:

1. Draw a ray OA.

2. Place the centre of the protractor on point O, and coincide line OA and Protractor line

3. Mark point B on 75 degrees.

4. Join OB

Therefore \angle AOB = 75^{\circ}

Now, we need to find its line of symmetry

that is, we need to find its bisector.

We follow these steps

1. Mark points C and D where the arc intersects OA and OB

2. Now, taking C and D as centres and with the radius more than \frac{1}{2}CD, draw arcs to intersects each other.

3. Let them intersects at point E.

4. Join O and E.

Therefore OE is the line of symmetry of \angle BOA = 75^{\circ}

Answer 2

Answer:

Draw a line L and mark a point O on it.

(b) Place the pointer of the compasses at O and draw an arc of any radius which intersects the line ll at A.

Taking same radius, with centre A, cut the previous arc at B.

Join OB, then ∠∠BOA = 60∘.60∘.

(e) Taking same radius, with centre B, cut the previous arc at C.

(f) Draw bisector of ∠∠BOC. The angle is of 90∘.90∘. Mark it at D. Thus, ∠∠DOA = 90∘