Use green's theorem to evaluate integral c
f · dr.
(check the orientation of the curve before applying the theorem.)
f(x, y) = y2 cos(x), x2 + 2y sin(x) c is the triangle from (0, 0) to (3, 18) to (3, 0) to (0, 0)

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.