Answer:
20√2 cm
Step-by-step explanation:
The diagonal of a square forms a right triangle with it's 2 sides.
Going step by step, lets refer to the side of a square as x.
Our triangle will have 2 legs of x and a diagonal of 10. We can either use the 45:45:90 method or use Pythagorean. The 45:45:90 method is more simpler so I will show the step by step method through Pythagorean, which the 45:45:90 method is derived from anyways.
x^2 + x^2 = 10^2
2x^2 = 100
x^2 = 50
x = √50 = 5√2
The perimeter is equal to the sum of all the square's sides, which modeled by x would equal 4x.
so the perimeter would be 4 * 5√2 which is 20√2
Hope this helps :)
rope after 2 seconds. Type in your answers.
0.4m
Time (sec): 2
a) What is the amplitude of the waves? 5 pts
b) What is the wavelength of the waves? 5 pts
c) How many waves are generated in two seconds? 10 pts
d) What is the frequency of the waves? 10 pts
e) What is the period of the wave? 10 pts
Answer:
a) 0.4m
b)2m
c)2
d)1 s^-1
e) 1 s
Step-by-step explanation:
a) The amplitude of the wave is the highest vertical displacement
with respect to this question, this is 0.4m
b) The wavelength of the wave is simply the distance between two crest or troughs
In this question, this is 2m
c) The number of waves generated is 2
d) Frequency of the waves is the number of waves generated per second
if 2 waves are generated in 2 seconds
The number of waves in a second is 2/2 = 1
So the frequency is 1 s^-1
e) Period is 1/frequency
= 1/1 = 1 second
Answer:
3 1/3
Step-by-step explanation:
5/2 divided by 3/4 = 3 1/3