Khaled has a model of his favorite car. The model is 1/8 the size of
the real car, which has a surface area of 34 square meters. What is the
surface area of Khaled's model? (Note: 1 m = 100 cm)

53.13 cm?
4250 cm2
0.531 cm2
42.50 cm2

When we are dealing with area (2 dimensions) the decrease is (1/8) squared or 0.0156250

So 34 sq meters * 0.0156250  = 0.53125 sq meters

A square meter = 100*100 cm = 10,000 sq centimeters.  

So .53125 sq meters times 10,000 =  5,312.5 sq centimeters

I double-checked my answer and it seems the answer is 5,312.5 sq cm.

I'm guessing whoever made this question, when they converted square meters to square centimeters, they divided by 100 instead of 10,000.

Step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.