The amount of degrees in a polygon: 360
In a pentagon: 360 / 5 = 72
9x - 18 = 72 Add 18 to both sides
9x = 90 Divide by 9
x = 10
obtuse angles are having value greater than 90 degree.
so ans is option A
angle DBC is greater than 90
Answer:
21n
Step-by-step explanation:
hope this helps
Answer:
The component on the left of original one would be
30 x cos45 =30 x sqrt2/2 =~21.21
The component on the right of original one would also be
30 x cos45 =30 x sqrt2/2 =~21.21