2. Get a referral for physiotherapy. If your back pain is recurring (chronic) and caused by weak spinal muscles, poor posture or degenerative conditions such as osteoarthritis, then you need to consider some form of rehabilitation.. Get a referral for physiotherapy. If your back pain is recurring (chronic) and caused by weak spinal muscles, poor posture or degenerative conditions such as osteoarthritis, then you need to consider some form of rehabilitation.
The exterior angle of a triangle is equal to 1  . the value of its adjacent angle. 2  the sum of its opposite interior angles.  the product of its opposite interior angles.
Exterior Angle Theorem This video discusses the exterior angle theorem. It also defines what exterior and remote interior angles are. It solves two example problems in detail. The first example problem is pretty basic. The second example problem is much harder. An exterior angle is an angle formed by the extension of one side of a triangle.