We know that C=2 pi r and C= 10 pi
therefore 2r=10, r=5
Area, A=pi r ^2=78.54 square inches
Congruent means they have the exact same dimensions in both length and angles. If you flip the first shape clockwise by 90 degrees, you will notice that both shapes look identical. From this we can gather that:
BC = PS
AB = SR
AD = RQ
CD = PQ
likewise with the angles:
B = S
C = P
A = R
D = Q
hope this helps! xx
By giving just the radius and asking for the arc length of that circle your answer will be without math is 22
π
feet
But;
Let’s do same math!
Arc length = (()/360)⋅2⋅⋅
(
(
a
n
g
l
e
o
f
a
r
c
)
/
360
)
⋅
2
⋅
π
⋅
r
In this case angle of arc was not specified so: 360∘
∘
was used.
Arc length = ((360)/360)⋅2⋅⋅11
(
(
360
)
/
360
)
⋅
2
⋅
π
⋅
11
Arc length = 22
π
feet
Answer:
Its C
Step-by-step explanation:
Sqrt 80n^2 = sqrt 40x2xnxn = sqrt 20x2x2xnxn = sqrt 10x2x2x2xnxn = sqrt 5x2x2x2x2xnxn
Pull out numbers and letters in groups of 2
2x sqrt 5x2x2xnxn
2x2x sqrt 5xnxn
2x2xnx sqrt 5
Multiply the numbers and letters on the outside of the radical
4n x sqrt 5 is the final answer.
