Answer:
156°
Step-by-step explanation:
The interior angles of a convex n-gon add to (n -2)180°, so a 14-gon has a sum of angles of 12×180° = 2160°. Since 13 angles sum to 2004°, the remaining one must be ...
... 2160° -2004° = 156°
Answer: 24 units.
Step-by-step explanation: Count out how many units long AB is. AB goes from -3 to 3, for a length of 6 units.
Count out how long AC is. AC goes from 4 to -4, for a length of 8 units.
To find BC, use the Pythgorean theorem (a^2+b^2=c^2). 8^2 is 64, and 6^2 is 36. Add 64 and 36 to get 100. Then find the square root of 100, which is 10.
Add all the lengths. 6+8+10=24.
Answer:
x=-2
Step-by-step explanation:
distribute on both sides
3x+6=4-2x
subtract 2x
5x+6=4
Subtract 6
5x=-10
divide 5 from the x
x=-2
Answer:
6.28
Step-by-step explanation:
1/2 x 3.14 x 2^2 = 6.28
