Q(2a , 0)
R (2b, 2c)
Midpoint QR
x = (2a + 2b)/2
= 2(a+b) / 2
= a + b
y = (0+ 2c)/2
= 2c/ 2
= c
Midpoint QR (a + b, c)
Answer: third option
(a + b, c)
