Question

Can someone pls help me I’m stuck

Answer 1

Answer: Will this help

r≈0.41cm

C=2πr

Solving for r

r=C

2π=2.6

2·π≈0.4138cm

Answer 2

Answer:

the circumference is 8.17 but since you have to round to the nearest tenth, the ANSWER is 8.2

Step-by-step explanation:

the equation for circumference is C=2πr (you can look that up)

the diameter is 2.6 but you need to find the radius, which is half of the diameter. 2.6/2 = 1.3 so the radius is 1.3. all you have to do now is plug 1.3 into the equation for circumference.

C=2π(1.3) = 8.17

then you just round that to the nearest tenth, and since the number in the hundreds place (7) is greater than 5, you round up, bringing your answer to 8.2

i hope that made some sense. if not look up online how to find circumference of a circle and it'll give you a calculator and just enter the value 1.3 and it should give you the same answer i gave you