The perimeter of abcd is 256 inches. its length is 3 times as long as its width. what is the area

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°