Alex drew a circle with right triangle PRQ inscribed in it, as shown below: If the measure of arc QR is 80°, what is the measure of angle PQR? A) 50° B) 40° C) 80° D)70°

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

y=1/4x-4

step-by-step explanation:

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.