Find the missing length. Round to the nearest tenth of necessary.

It is a right triangle with side a being 8 ft and side b being 21ft what is the length of the 3rd side?
A 441
B 22.5
C 64
D 19.4*
Am I right and please explain I am a little confused.

23 answers

Nvm I was right
If it is a rt. triangle, the hyp. is greater than either of the other 2 sides.
c^2 = a^2 + b^2.
c^2 = 8^2 + 21^2 = 505,
C = 22.5.
Find the missing length of 9 and 10 round to the nearest tenth
what are all the answer i really need them today!!
Any one have the answers to check! I know alot of people use to cheat but i just need to check them!
When I'm done with my test I will post answers for
y'all to CHECK not to cheat.
if I get the right answers ill give them for you guys to check your answers as well. only to check the ones you don't know though.
I think the answer to your question is 64. Someone please tell me if im wrong
anyone
So what if it is the same as this one but the answers are
4.8
5
10.7
11
I don't really understand. We are doing this kind of subject called IXL.com, and i am doing this right now and i don't know how to solve it. I really need some help like right now. I'm a seventh grade student in TES. This is the question "What is the missing length of the hypotenuse? If necessary round to nearest tenth. That is the question and im stuck at it.
anyone have the answer? ;-;
Lol @iiSunshineyyyy has yet to post the answer here, anyways, I'm pretty sure it's D.

D = 19.4, just incase the teachers switch up the answers again. 😒
there isn't a 19.4 i'm just gonna go to branly #hate you all
ikr
booty
what's the answer
if one hight is 7 and the side is 19 what is the missing length of the triangle that is on the bottom length
Unfortunately, you have not provided enough information to solve the problem. Please provide more information like if it's a right-angled triangle, or if there are any other lengths known.
Find the missing length. Round to the nearest tenth if necessary.
It is a right triangle with side a being 19 ft and side b being 7 ft what is the length of the 3rd side?
It is a right triangle, so we can use the Pythagorean theorem:

c^2 = a^2 + b^2
c^2 = 19^2 + 7^2
c^2 = 361 + 49
c^2 = 410
c = sqrt(410)
c ≈ 20.2

Therefore, the missing length of the 3rd side is approximately 20.2 ft.
Find the missing length. Round to the nearest tenth if necessary.
It is a right triangle with side a being 7 ft and side b being 19 ft what is the length of the 3rd side?
It is a right triangle, so we can use the Pythagorean theorem:

c^2 = a^2 + b^2
c^2 = 7^2 + 19^2
c^2 = 49 + 361
c^2 = 410
c ≈ 20.2

Therefore, the missing length of the 3rd side is approximately 20.2 ft.
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