Acylinder has a radius of 16 m and a height of 9 m. what is the approximate surface area of the cylinder? use 3.14 for π. a. 603 m2 b. 904 m2 c. 2512 m2 d. 14,469 m2answer if you know the if the answer is wrong i will report !

Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles