Hi there!

∠C = 40° and triangle ABC is isosceles, therefore:
∠C = ∠A = 40°
Angles in a triangle sum up to 180°, so:
180 = 40 + 40 + ∠A
180 = 80 + ∠A
100 = ∠A
Thus, arc CB has a measure of 100°.
Answer:
3
-2x +5=0
Step-by-step explanation:
Combine liked terms:
3
+5x+x-1x+6+2=7x+3
3
+6x-1x+8=7x+3
3
+5x+8=7x+3
Subtract 3: 3
+5x+8-3=7x+3-3
3
+5x+5=7x
Now subtract 7x:
3
+5x+5-7x=7x-7x
If you want combine liked terms:
3
-7x+5x+5=0
3
-2x+5=0
Hope this helps!
Answer:
9ft
Step-by-step explanation:
Since the triangles are similar, the corresponding sides are proportional.
Let the height of the flag pole be x feet.

We multiply both sides by 6 to get:

We reduce the fraction to get:

We now simplify


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