Plz which relationship is always correct for the angles p, q, and r of triangle abc? a triangle abc has angle abc labeled as q, angle bca labeled as r, and the exterior angle at a labeled as p. a. p + r = q b. p + q + r = 180 degrees c. p + q + r = 90 degrees d. q + r = p

B. p + q + r = 180 degrees

Step-by-step explanation:

We know that for any triangle one relationship is always correct between the angles of the triangle, i.e the sum of all the interior angles of a triangle is 180°.

Therefore, if triangle ABC has angle ABC labeled as q, angle BCA labeled as r, and the exterior angle at A labeled as p.

Then p + q + r = 180 degrees [By angle sum property of triangle]

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn