Video: Directional Drilling Basic Math

Your bit is at 76° inclination, your true vertical depth (TVD) at that 8200 ft, and your target is 90° and a TVD of 8320 ft. 

What will be the build rate to target? 
What will be your displacement to target? 
What will be the measure depth to target? 

Watch the video for answers.

Source: Elements of Directional Drilling