Answer:
180
Step-by-step explanation:
The area of a circle with diameter 12 is 36
. Dividing that by 2, you get an area of
18.
Hope this helps!
Answer:
50
Step-by-step explanation:
Answer:
x =39°
the total interior angles of a triangle is 180°
let the unknown angle be x,
solve:
x + 39 + 102 = 180°
x = 180° - 39° - 102°
x = 39°
Therefore the unknown angle is 39°
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