Answer:
Three
Step-by-step explanation:
Minus 60 from both side
255=85x
Divide both sides by 85
3=x
Step-by-step explanation:
BC = AD (opposite sides in parallelogram is equal)
x + 8 = 2x + 1
8 - 1 = 2x - x
7 = x
x = 7
BC = x + 8 = 7 + 8 = 15
Answer:
complementary angles sum to 90° 90° - 70° = 20° complementary of 70° is 20°