i speak Russian but can’t understand this very well, the instructions aren’t really clear, what’s the translation?
 
        
             
        
        
        
Answer:
∡RST
∡S
∡TSR
∡4
this appears to be an obtuse angle
Step-by-step explanation:
∡RST
∡S
∡TSR
∡4
this appears to be an obtuse angle
 
        
             
        
        
        
Answer:
July 
Step-by-step explanation:
Took terst
 
        
             
        
        
        
Answer:
20 units
Step-by-step explanation:
The 3 part of the ratio  refers to 15 units
Divide 15 by 3 to find the value of one part of the ratio
15 ÷ 3 = 5 ← value of 1 part of the ratio, thus
4 parts = 4 × 5 = 20 units ← perimeter of larger figure
 
        
                    
             
        
        
        
Answer:
75.36 feet
Step-by-step explanation:
The formula for circumference is C=2xpixr. Diameter is two times the radius so the radius is 12 feet. If we plug everything in, then 2 times pi equals 6.28 times 12 equals 75.36 feet. 
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