A triangle is placed in a semicircle with a radius of 9 ft, as shown below. Find the area of the shaded region. Use the value 3.14 for (pie symbol), and do not round your answer. Be sure to include the correct unit in your answer.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

idk man good luck man

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

c. 6tan80

step-by-step explanation: