Compatible numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally. They are useful in estimating the sum, difference, product, or quotient.
Answer:
Circumference = 2 * radius * 3.14
82.14 = 2*3.14 r
r= 82.14/6.28=13.079 cm.
So the area = 3.14 r^2
3.14*13.079^2
537.129 cm ^2
Hope this helps :)
Step-by-step explanation:
To solve this we are going to use the unitary circle and the fact that
From our circle we can infer that
and
.
Since
,
We can conclude that .
3/15 = 1/5
12/60 = 1/5
So the answer is true
3 over 15 equal 12 over 60
Hope I can help you :)
Sorry this is not a answer but I have to use this as one due to the question asking.... whelp
