Can u help me with Scale drawings,Construct scale drawings,relate scale drawings to are, and scale copies? please i know its alot to ask but my teacher assigned khan academy and the videos and quizzes aren't helping

Can u help me with Scale drawingsConstruct scale drawingsrelate scale drawings to are and scale copies please i know its alot to ask but my teacher assigned kha class=
Can u help me with Scale drawingsConstruct scale drawingsrelate scale drawings to are and scale copies please i know its alot to ask but my teacher assigned kha class=

Respuesta :

Answer:

Option B

Explanations:

Note that:

Scale Factor = (Actual Height) / (Drawing height)

From the question, the drawing height of the chick = 5cm

Let us consider the options one after the other, to determine which of them gives the actual distance for each of the scale factors selected, since drawing height = 5cm for all cases.

In option A:

Scale factor = 1/2

Scale Factor = (Actual Height) / (Drawing height)

1/2 = Actual Height / 5

2 (Actual Height) = 5

Actual Height = 5/2

Actual Height = 2.5 cm

10 units was written as the actual height of the chick in the option A, therefore, option A is wrong

In option B

Scale factor = 1/2

The actual height chosen is 2.5 units, since it is the same as the height of the chick that we calculated above, option B is correct.

Option C

This is also wrong because, actual height of the chick is 2.5 units for a scale of 1/2 and not 5 units