Abc is isosceles. a=48 degrees and b=4x+4, solve for x

x=15.5

Step-by-step explanation:

since ABC is isosceles two sides should be equal

A=48

B=4x+4 , since 2 sides should be equal B and C are equal

therefore C is also equal to 4x+4

ADD ALL:

48+4x+4+4x+4=180

48+8x+8=180

8x+56=180

Transpose 56 so its gonna be (-56)

8x=180-56

8x=124

DIVIDE BY 8:

x=15.5

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

step-by-step explanation:

6