Deprimenereidgo Deprimenereidgo Math Answered To prove wether the given triangle is equilateral or not, what formula will you use? a. midpoint formula b. distance formula c. quadratic formula d. triangle formula 2. all of the following are equation of a circle except______. a. x^2 + y^2 = 2 b. (x-3)^2+(y+2)^2=16 c. (x+2)^2 + (y+1)^2=0 d. x2+(y+5)^2=1 3. What is the equation of a circle whose center is at (0,0) and radius 5. a. x^2+y^2=5 b. x^2+y^2=25 c. x^2+y^2=10 d. x=y 4. given the equation (x-3)^2 + (y+2)^2 = 64, what is the radius? a. 64 b. 32 c. 16 d. 8 5. what is the center of the given circle in no. 4? a. (3,-2) b. (-3,2) c. (-3,-3) d. (3,2) 6. which of the following is the value of E in the equation x^2 + y^2 + 22x - 29y + 220 = 0 a. -29 b. 220 c. 22 d. 1