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viktelen [127]
3 years ago
9

HElp?????????????????????????????????????????

Mathematics
1 answer:
Tasya [4]3 years ago
7 0

Answer:

Option 4

Step-by-step explanation:

=> The length of DE = EF will prove that DEF is an isosceles triangle (having two sides equal)

=> Their slopes being the opposite reciprocals will prove that they are perpendicular to eachother and DEF is a right angled triangle.

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Answer:

Step-by-step explanation:

We can write an relationship for this as:

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If the Amplitud is 11×2=22cm and the wave was in shm then we can get the wavelength as 11×2=22s.
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