Question

Given that µ2 = 1.2 , µ4 = 3.75 calculate β2 =

Answer 1

Answer:

Draw a line segment BC = 5 cm

Taking B as centre, draw an arc of any suitable radius, which cuts BC at the point D.

With D as centre and the same radius, as taken in step 2, draw an arc which cuts the previous arc at point E.

With E as centre and the same radius, draw one more arc which cuts the first arc at point F.

With E and F as centres and radii equal to more than half the distance between E at F, draw arc which cut each other at point P.

Join BP to meet EF at L and produce to point O. Then ∠OBC = 90°

Draw BA, the bisector of angle OBC. [With D, L as centres and suitable radius draw two arc meeting each other at Q produced it to R]

=> ∠ABC = 45° [∴ BA is bisector of ∠OBC ∴ ∠ABC = = 45°]

From BR cut arc AB = 4.6 cm