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siniylev [52]
3 years ago
13

Prove that the circumcenter of a triangle is equidistant from its vertices.

Mathematics
1 answer:
ruslelena [56]3 years ago
5 0

Answer:

Step-by-step explanation:

The circumcenter is equidistant from the three vertices of the triangle. From the figure shown, we will prove DA = DB = DC. 2) DA = DB, DC = DB(If a point is on the perp. bisector of a segment, it is equidistant from each endpoint of the segment.)

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What is the surface area of the composite figure
leva [86]

Answer:

The answer is 672.

Step-by-step explanation:

To solve this problem, first let's find the surface area of the rectangular prism. To do that, multiply each dimension with each (times 2 | just in case you don't understand [what I'm talking about is down below]).

8 x 8 x 2 = 128

8 x 11 x 2 = 176

8 x 11 x 2 = 176

Then, add of the products together to find the surface area of the rectangular prism.

176 + 176 + 128 = 480

Now, let's find the surface area of the square pyramid. Now, for this particular pyramid, let's deal with the triangles first, then the square. Like we did with the rectangular prism above, multiply each dimension with each other (but dividing the product by 2 | in case you don't understand [what i'm talking about is down below]).

8 x 8 = 64.

64 ÷ 2 = 32.

SInce there are 4 triangles, multiply the quotient by 4 to find the surface area of the total number of triangles (what i'm talking about is down below).

32 x 4 = 128.

Now, let's tackle the square. All you have to do is find the area of the square.

8 x 8 = 64.

To find the surface area of the total square pyramid, add both surface areas.

128 + 64 = 192.

Finally, add both surface areas of the two 3-D shapes to find the surface area of the composite figure.

192 + 480 = 672.

Therefore, 672 is the answer.

6 0
3 years ago
(please help!)<br> Add −1.25+2.5<br><br> Plot the first addend and the sum on the number.
AVprozaik [17]

Answer:

the answer of this question is 1.25

3 0
2 years ago
Read 2 more answers
Find and compare the median and
Over [174]

Answer:

Median= $2.45/2

=$1.225

Mode= $2.87

3 0
3 years ago
You earn $20.00 per hour at your job. If you get a 10% raise at the end of each year, what will your hourly rate, h, be after 8
love history [14]
R is the rate (10%)
C=20, begiing rate
T=time=8

so

h=20(1+0.10)^8
h=20(1.1)^8
h=42.8718
ronnd

$42.87


D is answer

4 0
3 years ago
What is the next term of -4,-9,-14,-19,
olga2289 [7]

Answer:

9+5=14.

14+5=19.

19+5=-24.

Step-by-step explanation:

ADD +5 EVERY TIME

6 0
3 years ago
Read 2 more answers
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