Which relationship is always correct for the angles p, q, and r of triangle abc?

p + r = q
p + q + r = 180 degrees
p + q + r = 90 degrees
q + r = p

The correct answer is q + r = p.

The reason that we know this is that we know all the interior angles will add up to 180. We also know the angle opposite to p (let's call it s) will be equal to 180 - p since together they create a straight line. So, we can set up this equation and solve using that substitutation.

q + r + s = 180 ---> Sub in p value

q + r + (180 - p) = 180 > Subtract 180 from both sides

q + r - p = 0 > Add p to both sides

q + r = p

i do not know this sorry : (

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: