Answer:
B
Step-by-step explanation:
A triangles angles always sum up to 180 degrees. Since you already have 1 angle which is 43 degrees you will do 180-43 which is 137. The only angles that add up to 137 degrees is letter B.
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:
2 is your answer.
Step-by-step explanation:
Simplify. Remember to follow PEMDAS. First solve the parenthesis, then multiply, and finally divide.
-8(17 - 12) = -8(5) = -40
-2(8 - (-2)) = -2(8 + 2) = -2(10) = -20
-40/-20 = 2
2 is your answer.
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I believe The exact form is 2/45, while the decimal form would be 0.4 continuous
Answer:
$475
Step-by-step explanation:
7+6+7+5 = 25
25*19 = 475
