Pls help with my geometry

Mathematics

2 answers:

SCORPION-xisa [38]3 years ago

8 0

Answer:

BC, CA and AB.

Step-by-step explanation:

m < B = 180 - 77 - 45 = 58 degrees.

The larger the angle the larger is the opposite side.

The angles are 45, 58 and 77 so the shortest side is opposite 35 and is BC.

So from least to greatest the lengths are:

BC, CA and AB.

Georgia [21]3 years ago

7 0

AB, CA, BC hope this helps

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two arcs of concentric circles are intercepted by the same central angle. the resulting arc length of the arc of the larger circ

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the complete question in the attached figure

Let
A°-----------> the same central angle

For the larger circle
length of larger circle=2*pi*r-------> 2*pi*12-----> 75.36 m

360° (full circle) has a length of------------> 75.36 m
A°-----------------------------------> 16 m
A°=(16)*360/75.36--------> A=76.43°

For the smaller circle
length of smaller circle=2pi*r-------> 2*pi*7.5-----> 47.1 m

360° (full circle) has a length of------------> 47.1 m
76.43°-----------------------------------> X
X=76.43*47.1/360-----> X=10 m ----> length arc of the smaller circle

the answer is
the length arc of the smaller circle is 10 m