WORKSHEET-2 7. The natio of the cincumference of the diameter is
2. The distance around a circular region is known as it's
3. Find the area and circumference of circle whose radius is 35 cm
Сло
=2
= 22
Cincumference
AREA

1. = 3.143

2. Circumference

3. Area of the circle is 3850 .

   ii. Circumference of the circle is 220 cm.

Step-by-step explanation:

The area, A, and the circumference, c, of a circle can be determined respectively by:

A =

C = 2r

where r is the radius of the circle.

1. the ratio of the circumference and diameter, D, of a circle is:

r =

so that,

C = 2

C = D

=

   =

   = 3.143

2. The distance around a circular region is known as it's circumference.

3. Given a circle of radius 35 cm, then:

A =

   = x

   = x 1225

   = 22 x 175

A = 3850

Area of the circle is 3850 .

C = 2r

   = 2 x x 35

   = 2 x 22 x 5

   = 220

C = 220 cm

Circumference of the circle is 220 cm.

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.

answer: i'm great at algebra

~coco

step-by-step explanation: