SOLUTION: We have a circle with centre m and a diameter of 80 mm. There is a right-angled triangle inside the circle with two vertices on the circumference of the circle and the third vertex

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Question 1112947: We have a circle with centre m and a diameter of 80 mm. There is a right-angled triangle inside the circle with two vertices on the circumference of the circle and the third vertex at the origin m.the shaded area in the diagram,rounded to one decimal digit is?
Found 2 solutions by ankor@dixie-net.com, ikleyn:
Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
We have a circle with centre m and a diameter of 80 mm. There is a right-angled triangle inside the circle with two vertices on the circumference of the circle and the third vertex at the origin m.the shaded area in the diagram,rounded to one decimal digit is?
:
Assuming it is the area outside the triangle that is shaded
The radius of the circle, & the two sides of the triangle (base * height) = 40 mm
shaded area = () - (40*40)
5026.548 - 1600 = 4226.5
Answer by ikleyn(52776)   (Show Source): You can put this solution on YOUR website!
.
We have a circle with centre m and a diameter of 80 mm. There is a right-angled triangle inside the circle with two vertices
on the circumference of the circle and the third vertex at the origin m.the shaded area in the diagram,rounded to one decimal digit is?
~~~~~~~~~~~~~~~~~~~~~

Let me show you how to formulate the problem by an professional way: 

    We have a circle with center m and a diameter of 80 mm. There is a right-angled triangle inside the circle with two vertices 
    on the circumference of the circle and the third vertex at the center m. Find the area of the circle outside the triangle, 
    rounded to one decimal digit.


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