Question

In the diagram, a building casts a 35-ft shadow and a flagpole casts a 10-ft shadow. If the flagpole is 22 ft tall, how tall is the building? Round to the nearest tenth.

Answer 1

@HawkCrimson Can you help me with this one?

Answer 2

yea i can

Answer 3

These are thee possible answers
53.0 ft

37.0 ft

15.9 ft

77.0 ft

Answer 4

the answer is 77

Answer 5

u see this is all ratios

Answer 6

Thanks man

Answer 7

i thaught it was 37 at first

Answer 8

therefore the ratio of the shadows r 35 : 10

Answer 9

so wat u do is find 35:10 of 22
Therefore 22 x 35/10

Answer 10

oh okay okay, can you help me with another one?

Answer 11

sure :)

Answer 12

any ideas?

Answer 13

a hint is find the ratios of the sides ;)

Answer 14

Here are the possible answers

Yes; the similarity ratio is 3:4.
Yes; the similarity ratio is 1:2.
No; the triangles are not similar.
Yes; the similarity ratio is 2:3.

I dont understand how to do this though

Answer 15

6:8 9:12 12:16

Answer 16

So theyre not similar?

Answer 17

6:8 9:12 12:16
3:4 3:4 3:4

ratios can be treated as a fraction such as
6/8 9/12 12/16

Answer 18

ohh so kinda like simplifyng?

Answer 19

yes

Answer 20

alright so it 3:4

Answer 21

yes :)

Answer 22

I need help with another one, do you have time?

Answer 23

yep, wat is it?

Answer 24

ok for this one u need to use pythagromus theorem \[c ^{2}=a ^{2}+b ^{2}\]
and a hint will be that you have to use simultaneous equations :)

Answer 25

i can't figure it out

Answer 26

\[c ^{2} = a ^{2}+ 9^{2}\]\[c ^{2} = a ^{2}+29^{2}\]

Answer 27

9^2=81
29^2=841