You are right it is 20.
Hope this helps.
Answer:
x=20
Step-by-step explanation:
∠TRS and ∠VRW are vertical angles, so the measure of the angles will be the same.
First, set the two values equal to each other: x+40=3x
Then, subtract x from both sides to isolate x: 40=2x
Finally, divide both sides by 2 to find the value of x which is 20
$40.352
It's actually 6 cm. This is because the diameter of the smaller circle is 12pi/pi which is 12, and the diameter of the bigger one is 18pi/pi which is 18. 12 + 6 = 18, so the diameter increases by 6.
27/45 = 3/5
2/6 = 1/3
hope dis helps
