Just find the inverse cosine of 1 which is 0 degrees.
Answer:
102 un²
Step-by-step explanation:
Area surface = 4( 3 x 7 ) + 2( 3 x 3 )
4( 21 )+ 2( 9 ) =
84 + 18 = 102 un²
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-Chetan K
Answer:

Step-by-step explanation:








-132 divided by 8
-132 / 8 = -16.5