Of 8 The perimeter of an equilateral triangle is
150mm.
State the length of one of its sides.
mm

50mm

Step-by-step explanation:

An equilateral triangle has 3 equal sides. So the 150mm is divided by 3 to get the length of each side

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:

a. -0.3 > -0.33