Solve 4/r = 5/20 will mark brainliest

= 16

Step-by-step explanation:

Simplify  \frac{5}{20}

20

5

  to  \frac{1}{4}

4

1

.

\frac{4}{r}=\frac{1}{4}

r

4

=

4

1

2 Multiply both sides by rr.

4=\frac{1}{4}r4=

4

1

r

3 Simplify  \frac{1}{4}r

4

1

r  to  \frac{r}{4}

4

r

.

4=\frac{r}{4}4=

4

r

4 Multiply both sides by 44.

4\times 4=r4×4=r

5 Simplify  4\times 44×4  to  1616.

16=r16=r

6 Switch sides.

r=16r=16

Step-by-step explanation:

Right triangle ABC is reflected over AC to form triangle AFC.

Triangle AFC dilated by a scale factor of two-thirds to form triangle DEC.

Reflection is a rigid transformation which preserves lengths and angles, then

Dilation is a transformation which maps the triangle into similar triangle, so

Thus,

Similar triangle have congruent corresponding angles, so

and proportional corresponding sides

Thus, correct options are: