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vesna_86 [32]
3 years ago
6

Please help me answer this question​

Mathematics
1 answer:
sattari [20]3 years ago
4 0

Answer:

a, 14.13. b, 39.25

Step-by-step explanation:

so for a the diameter is 6 so the radius is 3. The equation for the area of the circle is πr2. So 3x3=9. then 9x3.14=28.26. But then we have to divide by two cause we are finding only the shaded area. 28.26/2=14.13.

A is 14.13

for b, its the same thing, so the radiu is 5 and 5x5=25. 25x3.14=78.5, and divide two, so 78.5/2=39.25.

B is 39.25

WARNING: I am not sure this is correct, so if this is wrong i'm sorry, i'm learning too :)

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3 years ago
Look at triangle ABC. What is the length of said AB of the triangle
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\bf ~~~~~~~~~~~~\textit{distance between 2 points}
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A(\stackrel{x_1}{4}~,~\stackrel{y_1}{5})\qquad 
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5 0
3 years ago
(02.09) Given a triangle with vertices at points (4, 4), (4, 1), and (2, 1), which set of ordered pairs represents the new verti
wel
Hello!

This triangle is currently located in Quadrant 1. If it is rotated 90 degrees counter-clockwise around the origin, it will end up in Quadrant 2. The formula for this is seen below.

(x,y)⇒(-y,x)

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Therefore, the final points of our rotated triangle are (-4,4), (-1,4) and (-1,2).

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4 0
3 years ago
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