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Free_Kalibri [48]
3 years ago
9

Triangle CDA is the image of triangle ABC after a 180° rotation around the midpoint of segment AC. Triangle ECB is the image of

triangle ABC after a 180° rotation around the midpoint of segment BC.
Part A: Explain why ABCD and ABEC are parallelograms.

Part B: Identify at least two pairs of congruent angles in the figure and explain how you know they are congruent.

Part C: Explain how to use what you know about the sum of the angles in a triangle to figure out the sum of the angles of quadrilateral ABED.
Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:equal and parallel opposite sides

Step-by-step explanation:

equal sides

parallel opposite sides

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Answer:

I believe the answer is 10 units.

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3 years ago
F(x) =x2-17x+60 how to find the zeros of the function​
sergiy2304 [10]

Answer:

x = 1&16

Step-by-step explanation:

f(x) = 0 then

0 =x^2 - 17x + 16

(x-1)(x-16) =0

x -1 =0 or x-16=0

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3 years ago
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I need help What is the surface area of the following figure? A 168 B 192 PLEASE HELP
Juliette [100K]

Answer:

<u>305 in^2</u>

Step-by-step explanation:

First step is always to break up the problem into parts and write out our formulas- in this case, let's solve the easier part first, the bottom rectangular box type shape.

Area of a square or rectangle: A= length * height

Area of a triangle: A = 1/2 * length * height

Each side is 6x2, making each side 12 in^2, times four sides equals 48 in^2

The box also has a bottom, with dimensions of 6x6, equaling 36 in^2. <em>be careful not to include the top, it may be included in this part of the problem that we're splitting up, but it's not in the actual figure</em>.

Next up is the top portion- let's calculate the two triangular sides first. again, A=(1/2)l*h . so, these triangles are (1/2) * 5 * 4 , or 10 in^2 . With two triangular sides that's 20 in^2 total.

And now we only have two sides left, the rectangular parts of the triangular prism. They have a dimension of 5*6, equalling 30, and with two sides its a total of 60 in^2.

All of these sides can be added together:

48 + 36 + 20 + 60 = 305 in^2

3 0
2 years ago
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Step-by-step explanation:

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zaharov [31]

Answer:

7:17 PM

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Add another 30 minutes to 6:30 = 7:00 PM

    47-30 = 17

add the remaining 17 minutes to 7:00 = 7:17 PM

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