Question

in triangle abc a-b=63 b-c=18 find b

Answer 1

Angle A = Angle B+63, Angle C = Angle B - 18

Angle A +Angle B + Angle C = 180
==> (angle B+63) + angle B + (angle B - 18) = 180
   OR 3 x angle B = 180 - 63 + 18 = 135
  OR angle B = 135 / 3 = 45 

Answer 2

Answer:

angle B = 135 / 3 = 45

Step-by-step explanation:

In Plane Geometry, a discern that's shaped with the aid of using  rays or strains that stocks a not unusualplace endpoint is referred to as an perspective. The word “perspective” is derived from the Latin word “angulus”, which means “corner”. The  rays are referred to as the perimeters of an perspective, and the not unusualplace endpoint is referred to as the vertex.

Acute Angle - An perspective much less than ninety tiers. Right Angle - An perspective this is precisely ninety tiers. Obtuse Angle - An perspective extra than ninety tiers and much less than a hundred and eighty tiers. Straight Angle - An perspective this is precisely a hundred and eighty tiers. Reflex Angle - An perspective more than a hundred and eighty tiers and much less than 360 tiers.

Angle A = Angle B+63, Angle C = Angle B - 18

Angle A +Angle B + Angle C = a hundred and eighty

==> (perspective B+63) + perspective B + (perspective B - 18) = a hundred and eighty

  OR three x perspective B = a hundred and eighty - 63 + 18 = 135

 OR perspective B = 135 / three = 45

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