Help with Math Work pls: area, perimeter of shaded portion of nested circles; arc lengths; shaded area of triangle

[Kaiser9090]

My assignment

 

[The Highlander]

My assignment

No one here will just give you the answers; we don't do your work for you!
Show us what you have attempted for each question and point out exactly where you are having difficulty.

​

 

[khansaheb]

My assignment

This forum allows 1 problem/thread. You will need to create unique thread for each problem.

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:

READ BEFORE POSTING​

Please share your work/thoughts about this problem

 

[The Highlander]

@Kaiser9090

I have separated your assignment into the three questions below.

Please start a new thread for each of them that you require assistance on but you must include your own attempt at a question so that we can see where you are having difficulty and how best then to help you.

Hints (for Q1):-

What is the area of a circle whose radius is 6 cm?
What is the area of a circle whose radius is 8 cm?
What fraction of a circle is a sector that subtends an angle of 35° at the centre of the circle?

Question 1:

​

Question 2:



Question 3: