Answer:
136 cm²
Step-by-step explanation:
I'm going to split the net into:
2x 7 cm by 2 cm rectangles
2x 6 cm by 7 cm rectangles
2x 6 cm by 2 cm rectangles
The 2x means there's 2 of them.
Let's find the area of the 2x 7 cm by 2 cm rectangles:
2*7*2=
4*7=
28 cm²
Let's find the area of the 2x 6 cm by 7 cm rectangles:
2*6*7=
2*42=
84 cm²
Let's find the area of the 2x 6 cm by 2 cm rectangles:
2*6*2=
12*2=
24 cm²
Adding all these areas together gives us the surface area of the net:
28+84+24=136 cm²
Answer:
Step-by-step explanation:
4.5+173=177.5.
122.5 does not equal 0.
Answer:
LCM = 24
Step-by-step explanation:
8 = 2 x 2 x 2
12 = 2 x 2 x 3
LCM = 2 x 2 x 2 x 3 = 24
<em>Hope that helps! :)</em>
<em></em>
<3 Cin Aphrodite...
Remark
If you have the area of the sector, then what you need is the area of the triangle in order to find the area of the shaded area. Just subtract the two.
Area of the triangle
The right angle makes finding the base and height very easy since they are equal
Area_Triangle = 1/2 * b * h
b = 9
h = 9
Area = 1/2 * 9 * 9
Area = 1/2 * 81
Area = 40.5
Area of the Shaded Area
Area_shaded = area of the sector - area of the triangle.
Area_shaded = 20.25 * pi - 40.5
Area_shaded = 20.25(pi - 2) <<<< Answer
Answer:
1)Area of circle: 64
2)Area of semicircles: 128
3)Area of quarter-circles: 128
4)Total area of pattern: 320
Step-by-step explanation:
r = 8cm
Given: 1 circle, 4 semicircles, and 8 quarter-circles.
Area of a circle: 
1) A = where r = 8
A = 64
2) 4 semicircles = 2 circles
so the answer is 2*A = 128
3) 8 quarter-circles = 2 circles
Therefore, the answer here is the same as the answer for #2!
4)There are 5 circles total because:
1 circle = 1 circle
4 semicircles divided by 2 = 2 circles (because 
times 4)
8 quarter-circles divided by 4 (think about what "quarter" means) = 2 circles
So ... 1 + 2 + 2 = 5 circles
Now we need to find the area of 5 circles which is just 5*A
5*A = 320
