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USPshnik [31]
2 years ago
9

Please solve for x please use statement reason

Mathematics
1 answer:
nataly862011 [7]2 years ago
8 0

AE || BC

===》 DCB angle = DAE angle

AC /

__________________________________

Thus :

DCB angle = x

And also we know that the submission of interior angles of any triangle must equals to 180 degrees so :

In BCD triangle :

B + C + D = 180

x + x + D = 180

D = 180 - 2x

__________________________________

In the other hand we know that :

BDC angle + BDA angle = 180

because they make a straight line together so ;

180 - 2x + 50 = 180

- 2x = 180 - 230

- 2x = - 50

x = 25

And we're done...

Have a great time ♡

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Step-by-step explanation:

  • You can use the distributive formula to answer:

a(b - c) = ab - ac

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3 years ago
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lidiya [134]

<em>48.25 in^2</em>

Step-by-step explanation:

The formula for the surface area of a pyramid is:

SA=B+\frac{1}{2}l(number of base sides)(b)

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A=\frac{1}{2}bh

A=.5*5*4.3

A = 10.75

Now we can plug in 10.75 for B.

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The cursive L will be the lateral height, which is 5. Since there are 3 sides on the base we can put that in for the number of base sides, and the base is 5.

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3 years ago
DE is tangent to Circle C at point D. <br><br> What is the measure of Enter your answer in the box.
creativ13 [48]

Answer:

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Step-by-step explanation:

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That makes m<D = 90.

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Studentka2010 [4]

Answer:

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10 and 12 have the lowest common denominator of 2

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So 5/6 is the lowest term of 10/12

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the slope is the five

Step-by-step explanation:

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