What strategy for finding area and perimeter of a 2 dimensional shape?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?