We first add both 19.8 by 19.8 and therefore, that would give us 39.6.
42 - 39.6 = 2.4.
2.4 ÷ 2 = 1.2
1.2 would be the length of each sides.
I think its f(0) = 3
Thats the only one that sounds true but not sureee
Answer:
for 20 the answer is B
Step-by-step explanation: