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Ghella [55]
3 years ago
13

What is the m∠q ?????????????????????? help i taking a test and imma get beat if i fail

Mathematics
2 answers:
balandron [24]3 years ago
5 0

Answer:

Unlike the previous problem, this one requires application of the Law of Cosines.  You want to find angle Q when you know the lengths of all 3 sides of the triangle.

Law of Cosines:  a^2 = b^2 + c^2 - 2bc cos A

Applying that here:

                          40^2 = 32^2 + 64^2 - 2(32)(64)cos Q

Do the math.  Solve for cos Q, and then find Q in degrees and Q in radians.

Step-by-step explanation:

zysi [14]3 years ago
4 0

Answer:

x = 30

Step-by-step explanation:

this is an isosceles triangle, which mean that PRQ and PQR are equal.

all sides of a triangle equal 180.

using this, you can make the following equation:

x + (2x + 15) + (2x + 15) = 180

<em>combine like terms</em>

5x + 30 = 180

<em>subtract 30 from both sides</em>

5x = 150

<em>divide both sides by 5</em>

x = 30

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