Answer:
John added 1 +4 +4 to get 9 (12x12 = 144)
Step-by-step explanation:
12x12 actually equals 144
1 + 4 +4 = 9 so it appears John just added all the digits of 144 to get 9
A + b
= -10 + 4
= 4 - 10
= -6
Answer:
the 2nd answer
Step-by-step explanation:
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Find the length of each side using Pythagoras theorem;
x=
A=1/2bh
A=1/2*5.77*5
A= 14.43 c