Question

Construct angles using ruler and compass and verify by measuring them by a protractor. 30 degrees

Answer 1

Answer:

R.E.F image

(a)30

∘

(b)

2

45

∘

(c)15

∘

(d)=75

∘

(e)105

∘

(f)=135

∘

(a) For 30

∘

First mark 60

∘

angle

Now form c, draw an arc of

any length center then BC

Now Cut from saw arc of length

from point B.

∗ Now join the measuring point

From A and get your angle

that

2

60

∘

=30

∘

This is the way to divide an angle

∗ So using this Concept you can draw by you self

of

2

45

∘

, first dividing by 90

∘

construct 45

∘

and

then by divided 45

∘

Construct

2

45

∘

∗ (c) 15

∘

in 1

st

Question you can construct 30

∘

so

now divide and get 15

∘

.

∗ (d)75

∘

,→ for this you make 150

∘

angle which

is easy first make 90

∘

and add 60

∘

of arc then of will be 150

∘

then divide

simply.

∗ (e)105

∘

→ first make 90

∘

and arc of 15

∘

by measuring from (c) part you will get you

graph.

∗ (f)135

∘

→ first make 120

∘

by drawing double of

60

∘

and then add 15

∘

using (c) part.