Since it's a right triangle you can use the Pythagorean theorem or Trig (Soh Cah Toa).
I'll just use the Pythagorean theorem : a² + b² = c²
a = 9
b = x
c = 18
9² + x² = 18²
81 + x² = 324
x² = 324 - 81
x² = 243
x = √(243)
factor 243 to find a perfect square
x = √(3*81)
x = 9√(3)<u />
What is the value of A and B find the square root of two times the square root of 14 equals a multiplied by the square root of BWhat is the value of A and B find the square root of two times the square root of 14 equals a multiplied by the square root of BB) x= -13/2
C) x=25/28
D) x=-7/20What is the value of A and B find the square root of two times the square root of 14 equals a multiplied by the square root of B14Which equation below compares the amount of medicine, S, in Sofia’s system with the amount of medicine, L, in Lexi’s system? L = 16 x S S = 16 x L L = 4 + S S = 4 + L16What is the value of A and B find the square root of two times the square root of 14 equals a multiplied by the square root of B14What is the value of A and B find the square root of two times the square root of 14 equals a multiplied by the square root of BB) x= -13/2
C) x=25/28
D) x=-7/20
Answer:
radius 12 units = 452.16 units²
diameter 16.8 units = 221.5584 units²
radius 3.4 units = 36.2984 units²
diameter 10 units = 78.5 units²
Formula for area of circle: 
