Answer:
let remaining angle in heptagon be a.
a+64=180(linear pair)
a=116
again
x+155+90+163+a+121°=720(sum of interior angle of hexagon is (6-2)×180°)
x+529+a=720
x+116=720-529
x=191-116=75
Step-by-step explanation:
Area=10*7*16mm³=1120mm³
Answer: -6.7
64.3−(3)(23)−2
=−6.7
C
3x^2 + x -12 + 15/(x^2+4)
