What gose first x axis or y axis when you write it
1 answer:
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We can use the ratios for special triangles (see the attachment below). We'll be using the 45-45-90 triangle. We notice that side BC is equal to 
, and side AC (x using the special right triangle) is equal to 16. We can therefore say that side BC is equal to 
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Answer:
Part a) The area of the figure is
Part b) The perimeter of the figure is
Step-by-step explanation:
Step 1
Find the area of the figure
In this problem we have that
The figure ABC is the half of a square and the other figure is a semicircle
<u>Find the area of the figure ABC</u>
we have
The area of the half square ABC is equal to find the area of triangle ABC
so
<u>Find the area of the semicircle</u>
The area of the semicircle is equal to
we have that
substitute
The area of the figure is equal to
Step 2
Find the perimeter of the figure
The perimeter of the figure is equal to
we have
Applying Pythagoras theorem
Remember that
the circumference of a semicircle is equal to
The perimeter of the figure is equal to
Simplify