Dana is trying to draw a scaled copy of Polygon PQRST. The scale factor is 5. She know that angle R is 90 degrees.
What will the size of angle R be in the scaled copy?

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer