Answer:
Step-by-step explanation:
<u>Perimeter is:</u>
- P = a + b + c
- P = 4x - 3 + x + 9 + 8 = 5x + 14
<u>Area is:</u>
- A = 1/2bh 
- A = 1/2*8*3x = 12x
Correct choice is A
 
        
                    
             
        
        
        
C = $7s
independent variable ie the changing variable is s
dependent variable ie the non changing variable is c
        
                    
             
        
        
        
Given:
m∠APD = (7x + 1)°
m∠DPC = 90°
m∠CPB = (9x - 7)°
To find:
The measure of arc ACD.
Solution:
<em>Sum of the adjacent angles in a straight line = 180°</em>
m∠APD + m∠DPC + m∠CPB = 180°
7x° + 1° + 90° + 9x° - 7° = 180°
16x° + 84° = 180°
Subtract 84° from both sides.
16x° + 84° - 84° = 180° - 84°
16x° = 96°
Divide by 16° on both sides.
x = 6
m∠APB = 180°
m∠BPD = (9x - 7)° + 90°
              = (9(6) - 7)° + 90°
              = 47° + 90°
m∠BPD = 137°
m∠APD = m∠APB + m∠BPD
              = 180° + 137°
              = 317°
<em>The measure of the central angle is congruent to the measure of the intercepted arc.</em>
m(ar ACD) = m∠APD
m(ar ACD) = 317°
The arc measure of ACD is 317°.
 
        
             
        
        
        
Answer:
the answer is 6xy , hopefully that helped you