Question

PLEASE HELP
The edges of a plot of land are bordered on all sides by a forest forming a triangular plot. The edges of the plot of land are 35 m, 52 m, and 82 m. What are the angles of the border of the plot of land?

Answer 1

You can solve for sides of a triangle using the following equation. 

A = arccos (b^2 + c^2 - a^2/2bc)

And likewise for other variables by moving the letters. 

Ultimately, in this problem you get the following angle measures:

15.87
23.97
140.16

Answer 2

The angles of the border of the plot would be as follows:

$15.87\\23.97\\140.16$

Find the angles

Given that,

The edges of the triangular plot = $35 m, 52 m, and 82 m$

Using the formula,

$A = arccos (b^2 + c^2 - a^2/2bc)$

By putting the values, we can determine the measures of the angles as:

$=$ inverse cosine($(b^2 +c^2 - a^2/2bc)$

∵ We get,

$15.87\\23.97\\140.16$

Thus, the above answers are correct.

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