A=πr²
A=π13²
A=530.93
hope this helped
Triangles a are similar because they have the same degrees
And Triangles d are similar because they are the same shape
Answer: x < -3 or x > 5
Step-by-step explanation: Interval notation shows the values of x. X is less than -3, or greater than 5.
13 + 23 · (19 - 7)
Do the parentheses first.
13 + 23 · (12)
Now do multiplication.
13 + 276 = 289
The answer is D) 289.