Here is a really great 4 minute video that should help alot!
https://www.khanacademy.org/math/geometry-home/congruence/theorems-concerning-parallelogram-properti...
21x-9+63=180
21x+54=180
21x=126
x=6
Answer:
48
Step-by-step explanation:
4 times 12 can be easily written as 12 4 times!
12 + 12 + 12 + 12
12 + 12 is 24; 24 + 12 is 36; 36 + 12 is 48
Fun times :)
Answer:
I believe its 60cm squared
I’m not sure
