Answer:
B.
Step-by-step explanation:
Option B is correct - angle ABE is less than 90 degrees, therefore it is acute, and angle DBC is greater than 90 degrees, therefore it is obtuse.
-13, -12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
When angles and sides are all equal
5
Take 20, and divide it by 4.
find the area if the sector,then the area of the triangle.After that, Subtract the area of the triangle from the area of the sector
2^9
2^-2 * 2^11
(2*2*2*2*2)*(2*2*2*2)
