Question

(ii) Use a protractor to construct ZPOQ = 80°. Now, construct an angle of 40° with the
help of a ruler and a pair of compasses.​

Answer 1

Step-by-step explanation:

∠pqr=80 degree and \angle pqr=\angle abc∠pqr=∠abc

Step-by-step explanation:

Given,

Using a protractor draw \angle pqr∠pqr equal to 80\ degree80 degree .Construct \angle abc∠abc equal to \angle pqr∠pqr with the help of ruler and compass.

Following steps:

Draw a ray qrqr using scale.

From point qq draw an angle 80\ degree80 degree using protector like \angle pqr=80\ degree∠pqr=80 degree

qq as center draw an arc on \angle pqr∠pqr which cuts ray qr\ and\ qpqr and qp at s\ and\ ts and t

Now, draw a ray bcbc

Take arc measure of stst and bb as a center draw same arc using compass which cuts ray bcbc at dd

Take stst using compass and cuts point ee like st=dest=de .

Join bebe and extend it like baba

So, \angle pqr=\angle abc∠pqr=∠abc

Now, \angle pqr=80\ degree∠pqr=80 degree and \angle pqr=\angle abc∠pqr=∠abc

Answer 2

Answer:

Vertical angles are two nonadjacent angles formed by two intersecting lines. You can use the corner of a piece of paper to see that ∠ZVY and ∠WVU are less than right angles. Therefore, and are acute vertical angles. ... two obtuse adjacent angles angles