Step-by-step explanation:
6. the answer is 4. because u find the diameter by dividing by 2.
7. answer = 8 , the radius is 4 . so u need to multiply 2 times 4. 2 times 4 =8.
X+y=57
y=x+15
x+x+15=57
2x=42
x=21
y=21+15
y=36
Answer:
Step-by-step explanation:
Since each term is decreased by three 
A 30-60-90 triangle is special because of the relationship of its sides. Also <span>It turns out that in a 30-60-90 triangle, you can find the measure of any of the three sides, simply by knowing the measure of at least one side in the triangle.
Hope this helps. :)</span>
