I am a little confused about the question you are trying to ask. It is an isosceles triangle because it has two sides of equal length.
The other angle would be...
180-2(55)=70 degrees
Sin x = a/c
cos x b/c
tan x = a/b
Answer:
-15
Step-by-step explanation:
-3+-2*5-2=-15
When two shapes are mathematically similar, that means that all their sides are in a proportion.
We know the sieds of EH and AD, and so we can find the proportion of the shapes using these two sides.
EH/AD = 6/9 = 2/3
The ratio of EFGH to ABCD is 2:3
Now we have to find BC.
Becuase they're in proportion, we can form this equation:
= 
Cross multiply:
24 = 2*BC
Divide both sides by 2:
BC = 12 cm
Good luck!
Answer: x=-20
Step-by-step explanation:
Isolate the variable(x) by dividing each side by factors (50) that do not contain the variable.