Answer:
perimeter = 28.13 cm
Step-by-step explanation:
Calculate the length of a line drawn from A to C.
sin 85 = b/8, b = 7.97
cos 85 = c/8, c = 0.697
AC² =7.97² + (6 + 0.697)² = 63.52 + 44.85 = 108.37
AC = 10.41
Now you have a right triangle ADC with a known hypotenuse and  one leg.
Using the Pythagorean theorem:
DC² = 10.41² - 5²
DC² = 108.37 - 25 = 83.37
DC = 9.13 cm
perimeter = 5 + 6 + 8 + 9.13 = 28.13 cm
 
        
             
        
        
        
This can be factored into (2t - 9)(t + 7)
        
             
        
        
        
Answer:
A. But im not 100% sure its the answer..
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
area if sector= teeta. ×πr²
 360
<u>120</u>°. ×<u>2</u><u>2</u>×9×9
360. 7
<u>3×1782</u>
 7
5346