Answer is D.x=9
5x+3+6x+5+8x+1=180
now solve for 'x'
Hope this help
Answer:
r≈23.4cm
Step-by-step explanation:
We need the object and the characteristics.
Answer:
21 degrees
Step-by-step explanation:
Triangles have a total angle of 180 degrees.
This makes our equation:
3x+3+4x+135=180
Subtract 135 from both sides and combine like terms
7x + 3 = 45
Subtract 3 from both sides
7x = 42
Divide both sides by 7
x = 6
Plugging the number in:
3x + 3 =
3(6) + 3 =
21