Hey there!
All the angles in a triangle add up to 180.
So,
70+30+x=180
100+x=180
x=80
I hope this helps!
~kaikers
9514 1404 393
Answer:
y = 12
Step-by-step explanation:
Triangles ABD and CBD are congruent, so DA = DC:
3y +6 = 5y -18
24 = 2y . . . . . . . . add 18-3y; next, divide by 2
12 = y
_____
<em>Additional comment</em>
In some variations of this question, you may be asked to solve for x. Since the angles are equal, you have ...
3x -1 = 34 -2x ⇒ 5x = 35 ⇒ x = 7 . . . (consistent with ∠ABC = 40°)
Answer:
B) 1/5
Step-by-step explanation:
P(R then Y) = 3/6 · 2/5 = 6/30 or 1/5 simplified
Answer: 116 Degrees
Step-by-step explanation:
540 is what the pentagon equals! You add up all of the sides, the square equals 90 degrees because it's a right angle. 121+115+98+90 equals 424. You subtract 540 - 424 and you get 116, which is x! Good luck!
Answer:
y+2=5(x+8)
Step-by-step explanation:
y-y1=m(x-x1)
plug the coordinate and slope in...
y+2=5(x+8)
DONE