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Another friend claims that you can use cosine ratio to find the height of the platform. Explain why JJ’s approach is or isn’t a reasonable approach to finding the height of the platform.

Another Friend Claims That You Can Use Cosine Ratio To Find The Height Of The Platform Explain Why JJs Approach Is Or Isnt A Reasonable Approach To Finding The class=

Answer :

Given:

A diagram is given describing a ramp and a platform.

Find:

we have to find the height of the platform.

Explanation:

The length of the ramp is given as 3.5 meter.

The height of the platform is equal to the perpendicular BC of triangle ABC, so its enough to find the Perpendicular BC.

We will use sine formula as

[tex]sin28^o=\frac{BC}{3.5}=BC=3.5(sin28^o)=3.5(0.47)=1.645[/tex]

Therefore, the height of the platform is 1.645 meter.

Since, the lengths like base and perpendicular of the triangle are not given, So JJ's approach is not a reasonable approach to find the height of the platform.

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