Just remember that
1meter=100 cm
81.66m=81.66*100=8166 cm
Answer:
A right angle measures 90°.
A supplementary angle is twice the measure of a complementary angle.
Step-by-step explanation:
Answer:2+2=4
Step-by-step explanation:bc I different
d1 = ax + by + c = 0 and d2= mx + ky + f = 0
if they are parallel :

8x + 2y = 7
8x + 2y - 7 = 0
- 8x + 2y -9 = 0
- 4x + y -6 = 0
- 16x + 4y - 19 = 0
you can create more whatever you want =)
Hope this helps ^-^