Multiple Math Questions Please Show Your Smartness and Answer?

1. If tangent of angle in triangle is 4/3 what is cotangent? 2. Which angle measure is closest to 8 radians? A 100 C 150 B 120 D 360 3. The point (3, -4) is on the terminal side of (angle sign) in standard position. What is the sine of (angle sign)? 4. A ladder is leaning against a house that's 25 ft tall. The foot of the ladder is 15ft away from the house. What is the angle the ladder makes with the ground? 5. How do you find area of triangle when given two sides and included angle? Thanks!