Answer:
false
Step-by-step explanation:
Answer:
A triangles angle always equal to 180 degrees. So if you add up what you already have which is 80+40=120
Answer:
1.5
Step-by-step explanation:
225° bisects Q III
315° bisects Q IV
-270° = 90°
405° = 45° bisects Q I
cos(225) sin(315) + sin( –270) tan(405) = ?
(-½√2)(-½√2) + 1(1) = ?
0.5 + 1 = 1.5