52/72
13/18 is your answer. Therefore, C.
The answer is b hope this helps
Answer:
So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.
Let's solve for what is easier first:
Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.
Here comes the interesting part:
Now, we have one part of QR, which is QN.
The other part can be solved by using the Pythagorean theorem.
It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.
SO, QR = QN + NR
5+36 = 41
QR = 41.
Hope this helps!
Divide both sides by 12 to get x by itself
so it looks like:
that's it
Step-by-step explanation:
1. A four-sided polygon is a/an
a. octagon
b. hexagon
c. <u>quadrilateral</u>
d. pentagon
e. heptagon,
2. a five-sided polygon is a/an
a. heptagon
b. quadrilateral
c. <u>pentagon</u>
d. octagon
e. hexagon
3. a six-sided polygon is a/an
a. pentagon
b. octagon,
c. heptagon
d. <u>hexagon</u>
e. quadrilateral
4. a seven-sided polygon is a/an
a. quadrilateral
b. pentagon
c. hexagon
d. octagon
e. <u>heptagon</u>
5. an eight-sided polygon is a/an
a. quadrilateral
b. pentagon
c. hexagon
d. <u>octagon</u>
e. heptagon
<u>Bold and underlined words are answers.</u>
