The diameter of a circle is 14cm. Which TWO statements are correct?

A

(a) and (e)

Step-by-step explanation:

Given

Required

Select the true statements

First, is a statement about the area.

The area is calculated as:

So, we have:

(a) is true

Next, is a statement about the circumference.

This is calculated as:

So, we have:

(e) is true

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2