The unknown triangle ABC has angle A=60∘ and sides a=12 and c=19. How many solutions are there for triangle ABC? If there are infinitely many, enter [infinity].

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

What is the relationship between all triangles that can be drawn given the same three angles

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)