Given a ABC with sides a, b, c and 3 point D on side c. Prove the inequality a + b-c <2CD. internal​

What is the length of the unknown leg in the right triangle ?

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

If the value of cos330°is√3/2 then find cos 165°.