The answer is that x equals 15

Explanation:
The triangle is right angled.
The formula for area of the triangle:

base = 3
height = 4
substitute the values:
Answer:
Both chords and diameters have two endpoints on a circle. Diameters must intersect the center of a circle.
Step-by-step explanation:
Answer:
Step-by-step explanation:
if you need help let me know
It’s b.
because it’s would be 180-45