Step-by-step explanation:
x+ y = 20
- x - y = 16
= 2y = 4
y = 2
put the value of y in any equation u like
x + y = 20
x + 2 = 20
x = 18
The radius is 7 what it is telling you is that you already did the square 4^2*3.14=49 pi.
Answer:
C
Step-by-step explanation:
Yes, ACD = BCD by AAS since they have 2 congruent angles & share a side.
