Hi I need help on what is the answer to this problems? Below is the question and other concerns will be in the comment section. I hope you can help me and surely I will give you full positive feedback.

7. Set up the definite integrals required to find the perimeter of R. 1 + ridr + 4 1 + Aridr + 4 1 +9r'dr + 4 d I + aldr + 41. Find the area of the triangle whose vertices are the points (1, 1), (4, 5) and (6, 3). CLON a. 2 G. 5 b. 4 d. 7 2. Find the area of the region bounded by the curves y = s' - 2x' and yes - 2r. C. d. 13. Find the exact are length of the curve over the stated interval y = al from a = I to 80V10 - 13V18 50V - 13v10 C. 27 b. 80y 10 + 13v/13 d 50 13 + 13v10 27 For numbers 4-7: Let A be the region bounded by yos'- 1, s = 2 andy= 0. 4. Find the area of R. square units C. square units square units square units 5. Find the volume of the solid generated when R is revolved about a-axis using the Washer Method. euble units cubic units b. cubic units cubic units 6. Find the volume of the solid generated when R is revolved about s = 2 using the Disk Method. cable units cubic units b. cubic units cubic units