Answer: r= -1000
Step-by-step explanation:
Solve for r by simplifying both sides of the equation, then isolating the variable
 
        
                    
             
        
        
        
Answer:
The length side of the triangle is 
Step-by-step explanation:
we know that
The equilateral triangle has three equal sides and three equal internal angles of measure of 60 degrees each.
Let
b------> the length side of the equilateral triangle
Applying Pythagoras theorem

 
        
             
        
        
        
Answer:
   35°
Step-by-step explanation:
Inscribed angle s is half the measure of the arc it subtends. That arc is the supplement to the 110° arc shown. The arc is 70°, so angle s is 35°.
 
        
             
        
        
        
Answer:
:D
Step-by-step explanation:
it is 19 cm