Lin and tyler are drawing circles. tyler’s circle has twice the diameter of lin’s circle. tyler thinks that his circle will have twice the area of lin’s circle as well. do you agree with tyler?

No, tyler is wrong, his circle´s area has  four times the Lin’s circle area.

Step-by-step explanation:

Hello

Let's remember this about a circle

the area is given by:

where r is the radius

and the diameter

Step 1

according to the question Tyler’s circle has twice the diameter of Lin’s circle,in other terms

Let

Step 2

find the areas

Area of Tyler’s circle

replacing

let r_{1}= Tyler’s circle radius

Now, from

replacing

step 3

compare the areas

this means that  tyler is wrong, his circle´s area has  four times the Lin’s circle area.

Have a great day

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

step-by-step explanation: