What is a reasonable estimate for the area of a circle with radius

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

The table respent two linear functions the equation respented by the first tables is given

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?