How to do this question plz answer

(a) See net below

(b) 38 cm^2

Step-by-step explanation:

(a) see completed net below.

It's like a pizza box when finishd.

Fold the two sides (left, right, 1*3) up.

Fold the bottom part added up to form a side.

Fold the very bottom rectangle to form the top face.

(b) Total surface area

= top and bottom faces of 12 cm^2 each+ 2 sides of 3 cm^2 + 2 sides of 4 cm^2 each

= 2*12 + 2*3 + 2*4

= 24 + 6 + 8

= 38 cm^2

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:

answer:

sometimes

*i think