# A triangle has vertices A, B, and C. Vertex A has an angle of #pi/2 #, vertex B has an angle of #( 3pi)/8 #, and the triangle's area is #16 #. What is the area of the triangle's incircle?

6.681 (to four significant figures)

Equating the two expressions for the area, we get

So that the area of the in-circle is

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The area of the triangle's incircle is (16\pi).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- A triangle has vertices A, B, and C. Vertex A has an angle of #pi/8 #, vertex B has an angle of #(7pi)/12 #, and the triangle's area is #22 #. What is the area of the triangle's incircle?
- A triangle has vertices A, B, and C. Vertex A has an angle of #pi/8 #, vertex B has an angle of #(pi)/12 #, and the triangle's area is #8 #. What is the area of the triangle's incircle?
- If the circumference of a circle is half the area, what is the radius of the circle?
- What is the equation of the circle with a center at #(2 ,6 )# and a radius of #5 #?
- A circle has a center that falls on the line #y = 2x +7 # and passes through #(4 ,7 )# and #(1 ,2 )#. What is the equation of the circle?

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