Question 3 Find the area of the following figure. All corners are right angles.
3cm
A1
A2
2cm
2em
5cm
Write down your answer and show how you worked out your answer.​

a = 9 cm  

Step-by-step explanation:

We are given that

perimeter of shaded area = 1 m = 100 cm

But according to given diagram

The perimeter of shaded area = ( 3a + 2a + 2 + 2a + 3 + 2 + 3a + 3 ) cm

                                                 = (10a + 10) cm

By using given perimeter = 1 cm we get

The perimeter of shaded area = ( 10a + 10 ) cm = 100 cm

                                           10a = 90 cm

                                               a = 90 / 10 = 9 cm

Thus

                                                a = 9 cm                    

Hope this helps!

can i get the link to the assignment?

step-by-step explanation:

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)