How can the given figure be used to explain the sun of the angle measures of a triangle?

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Find the value of x that will make l ll m

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?