Can you please help me find answer to question 10 and 11? I need to show my work. I am lost!!!

I think u need to add the sum and equal to 180 reason supplement angle then that's is process

okay so 15.15 *()5: +5/6

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have