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maksim [4K]
2 years ago
12

Can you help me with 10 and 11... thank you

Mathematics
2 answers:
Sauron [17]2 years ago
8 0
The sum of the intereior angles for a regular polygon with n side is 180(n-2)

so pentaon is 5 sides, n=5
180(5-2)=180(3)=540 degrees
the sum of it's interior angles is 540 degrees



11.
draw diagram

we gotss a right triangle

remember, for any right triangle if the legs are a and b and hytponuse is c then
a²+b²=c²
hypotnuse is longest side
in this case, hytponuse is the diagonal

teh legs are 40 and 24
the hypotnuse is the diagonal

40²+24²=c²
1600+576=c²
2176=c²
sqrt both sides
8√34=c
aprox
c≈46.64
rounded
c=46.6ft

anzhelika [568]2 years ago
3 0
10. Because a pentagon has 5 sides and the sum of all the interior angles of a shape is 360 degrees, you would divide 360 by 5, to get the measure of each interior angle inside the shape. 360/5=72, therefore each interior angle would have a measure of 72 degrees.

11. To find the length of the diagonal of Davey's log cabin, you can use the Pythagorean Theorem, using 40 and 24 as a and b. You would have to solve the equation 40 squared + 24 squared = c squared, were c would represent the length you are finding. If you solve the equation, you find that the length of the diagonal of Davey's Cabin is 46.6 ft.
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Wow! There so much extra stuff on this drawing, naturally it's hard to see
what's going on.

First, do you remember "vertical angles" ?  They're the pair of opposite angles
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-- It says that angle-4 is 60 degrees.
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Angle-10 = 180 - (115) = 65 degrees



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3 years ago
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