Given the points: o (0,0), a(0,4), b (3,0), c(-4,0), and d (0,y). find two values of y so that δoba ≅ δodc. (hint: make sure you draw a picture) list them in order from smallest to largest.

-3 and 3

Step-by-step explanation: You first find the area of OBA which is 6, then you plot points that make a triangle that is congurent to 6. I fond that since there was a length of 4 in both, I simply went up three on the y-axis and down three on the y-axis. Sorry for the bad explanation but this is all I knew.

50pi or about 157

Step-by-step explanation: Find the distance between the two points using the Pythagorean theorem, and since that is the radius double it to get the diameter, then multiply that by pi to get the answer. Hope this helps!