cho góc xOy kề bù góc yOx'. Biết góc xOy bằng 2 lần góc yOx'. Vẽ Oy' là tia đối của tia Oy. Tính góc xOy, yOx', x'Oy, xOy'

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.