# Answer plzzzfast ↵ ​7. If a point C lies between two points A and B  such that  AC=BC then prove that AC=$\frac{1}{2}$AB. 8 If the difference between two supplementary  angles is 40$°$ Then  find the angles. 9 A chord of a  circle is equal to the radius of the  circle. Find the  angle subtended by the chord  at a point on the major arc. 10 construct an angle  of 135$°$ with ruler and compasse​

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