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3 years ago

The following triangle is an isosceles triangle. What is the length of the missing side?

Mathematics

2 answers:

frozen [14]3 years ago

6 0

Answer:

D.11 in

Step-by-step explanation:

isosceles triangles have two congruent sides

The missing side length is congruent with the longer side ( this is pretty obvious )

If the longer side has a length of 11in and the missing side is congruent to the longer side then the missing side length equals 11 in

pychu [463]3 years ago

3 0

The answer to this question is B.37 cause its an isosceles triangle so two of the sides have to be congruent where the other side is not therefore the side of the missing angle is 37.

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Answer:

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Step-by-step explanation:

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4 years ago

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Sholpan [36]

Answer: It does not confirm that ΔABC∼ΔA'B'C by the AA criterion as the measure of angle B is negative which is not possible.

Step-by-step explanation:

Since we have given that

In ΔABC,

∠A = 8x - 10, ∠B = 10x - 40, and ∠C = 3x + 20

In ΔA'B'C',

∠A' = 6x + 10, ∠B' = 70 - x, and ∠C' = 10x 2

Since ΔABC gets a dilation by a scale factor of $\dfrac{1}{2}$

So, it becomes,

$\dfrac{\angle A}{\angle A'}=\dfrac{1}{2}\\\\\dfrac{8x-10}{6x+10}=\dfrac{1}{2}\\\\2(8x-10)=6x+10\\\\16x-20=6x+10\\\\16x-6x=10+20\\\\10x=30\\\\x=\dfrac{30}{10}=3$

Now, put the value of

$\angle B=10(3)-40=30-40=-10\\\\and \angle B'=70-30=40$

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sladkih [1.3K]

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Step-by-step explanation:

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Answer with explanation:

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