6. If sin 0 < 0 and cot 0 < 0, which quadrant(s) could the terminal side of 0 lie?​

In a column proof the right column states your reasons

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle