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luda_lava [24]
3 years ago
15

Please help with geometry. need to find x and y, in picture

Mathematics
1 answer:
dangina [55]3 years ago
5 0

Answer:

Y = 12         x = 13

Step-by-step explanation:

Triangular Sum says that the three angles in a triangle is 180˙.

So, <DAC + <ACD + <CDA = 180.

1. Substitute the angle measures into the equation above.

<DAC + <ACD + <CDA = 180

(3y + 2) + 52 + 90 = 180

3y + 144 = 180

     <u>- 144   -144</u>

        <u> 3y</u> = <u>36</u>

         3       3

          y = 12

m<DAC &  m<CAB add up tp 90.

2. <DAC + <CAB = 90

         38 + 4x = 90

      <u>- 38 .</u>         <u>- 38</u>

                  <u>4x </u>= <u>52</u>

                   4      4

                    x = 13

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Answer:

r = 13

Step-by-step explanation:

The first step is to find b from y=mx=b using m=4/3 and (-4,8)

8=\frac{4}{3}(-4)+b

After solving the equation, b will equal -16/3 making the final equation be

y=\frac{4}{3} x-\frac{16}{3}

Using the equation, you can solve for r.

12=\frac{4}{3} x-\frac{16}{3}

This will bring the answer being r = 13

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Answer:

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Step-by-step explanation:

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3 years ago
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Are the two triangles below similar?
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Explanation:-

In Δ ABC

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By angle sum property of triangle

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3 0
3 years ago
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Step2247 [10]

Answer: Yes

Step-by-step explanation:

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\displaystyle \frac{\sqrt{13*2}}{\sqrt{13}} =\frac{\sqrt{13}*\sqrt{2}  }{\sqrt{13}}

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<em />

<em>We can also test this by using a calculator:</em>

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