Points D, E, and F are connected to form a triangle along the surface of a sphere. Points A, B, and C are connected to form a triangle on a Euclidean plane. m∠DEF + m∠EFD + m∠FDE = 180° m∠E + m∠F + m∠D = m∠A + m∠B + m∠C m∠E + m∠F + m∠D > m∠A + m∠B + m∠C m∠E + m∠F + m∠D < m A + m B + m C

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.