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Agata [3.3K]
3 years ago
5

Math Quiz Question! Measuring segments and Angles

Mathematics
1 answer:
user100 [1]3 years ago
6 0
I think it's 115

180-65= 115=<BCD
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Ok, we know that the width of the door is 4.20m.

Then, if the arc is at the top of the door, we will have that the diameter of that "half circle" will be equal to the width of the door.

Then the diameter of the arc is 4.20m

And the radius is defined as half of the diameter, so we have:

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then 2.10m = 2.1*100cm = 210cm

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