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what is the length of each leg of the triangles equal to ? - its some property of the circle.
???? there are no values given in the question
the diameter would be 8
the triangles are right triangles
can you please submit the whole question
yes they are right angles and the length of each leg = radius of the circle
Each triangle looks like this |dw:1438288256480:dw|
the options are: A=27pi A=4pi-8 A=6/3pi A=16 A=9pi-9/2 √3
Area of triangle A = (b*h)/2 b = base h = height
so 4x4 = 16?
cut that in half to get 8
each triangle has an area of 8
But wouldn't that still be 16 because I'm finding the area of the COMBINED triangle?
yes you add up 8 and 8 to get 16
you can think of it as combining the two triangles to form a rectangle |dw:1438288668943:dw|
So the answer is 16?
I have another question...
Find the area of the shaded sections. Click on the answer until the correct answer is showing.
yeah the answer is 16
I don't think I'll ever understand this...
|dw:1438289099785:dw| 120+x = 180 what is x ?
x = 60?
what is the area of the entire circle?
use the formula A = pi*r^2
in this case, r = 4
A= 3.14 x 16 = 54.4?
let's leave that in terms of pi
area of entire circle = 16pi
the angle 60 is 60/360 = 1/6 of the circle so the area of the pizza slice I shaded is 1/6 of the entire area |dw:1438290027136:dw|
area of 1 pizza slice = (1/6)*(entire area) area of 1 pizza slice = (1/6)*(16pi) area of 1 pizza slice = (8/3)*pi
not really...but you can move on to the next part...
well 1 slice is (8/3)*pi, so 2 slices combine to 2*(8/3)*pi = (16/3)pi
OH! I get it! THANKKK YOUU!!!