Answer: gabriel
Step-by-step explanation: when you have x and y,, they usually are equal to 1 and with gabriel's expression,, he made it simplier for us to solve but with his sister,, she just made it more different though both expressions are right,, but in the end gabriel is correct
Sine 35 degrees = x / 20
x = sine 35 degrees * 20
x = .57358 * 20
x = 11.4716
Answer:
I have attached the work to your problem.
Please see the attachment below.
I hope this helps.
Answer:DC=7
Step-by-step explanation:
As it is written △ABC = △DBC. So the corresonding legs (the legs which are equal ) are as follows:
AC=DC AB=DB BC= BC
So DC=7 the same like AC
Answer:
Option (3)
Step-by-step explanation:
"If two triangles are similar, their corresponding sides are proportional."
We will check each proportionality ratio given in the options for the given property,
Option (1),



But
.
Therefore, this option is not the answer.
Option (2),



But
,
Therefore, this option is not the option.
Option (3),



Therefore, this option is the answer.
Option (4),


But, 
Therefore, this is not the correct option.