This exercise involves the formula for the area of a circular sector. find the area of a sector with central angle 3π/5 rad in a circle of radius 9 m. (round your answer to one decimal places.)

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

Factor the polynomial. b^2 + 4b + 4

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)