The answer is A to the question
Answer:

Step-by-step explanation:

3x2x2=12
5x7x3=105

Answer: The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.
The formula for calculating the radius is different from calculating the diameter
Find radius
r= diameter/ 2
Radius is half of a diameter
While diameter is
d=2r
Step-by-step explanation:
Answer:
110.5mm
Step-by-step explanation:
Formula : a = hb/2
a = 13(17)/2
221/2 = 110.5
Answer C. The pattern is that each number in sequence 1 is being doubled to get the number in sequence 2, and 40*2=80