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Vesna [10]
3 years ago
12

I need help on 11-13 please i need this done asap! Can someone help me out

Mathematics
2 answers:
marin [14]3 years ago
7 0
Learn this the sum of angles in a polygon is (n-2)* 180. n is the number of sides or angles in the polygon.
Alex777 [14]3 years ago
4 0
13 is 141. A octagon has 1080 degrees and if you add all the angles up you get 939 and 1080-930=141
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Work out the size of angle B
eduard

Answer:

61

Step-by-step explanation:

and let c looks to be a right angle

7 0
3 years ago
Read 2 more answers
Find the quotient: 8,358 ÷ 27 = ________.<br> 309 r 15<br> 309 r 26<br> 310 r 15<br> 310 r 26
Rus_ich [418]

Answer:

the answer is 309 r 15

Step-by-step explanation:

309 × 27 is 8343 and your left with 15

7 0
2 years ago
What is the measure of x?
Sveta_85 [38]

Answer:

Hello!

After reviewing the problem you have provided I have come up with the correct solution:

x= 9

Step-by-step explanation:

To come up with this solution you have to first realize that the smaller triangle is a proportionally scaled down version of the entire larger triangle! (I will show what I mean in a linked picture)

So after we have realized that the smaller triangle is a scaled down version of the larger one, we can then create a formula or ratio to calculate the value of the missing side of the larger triangle (being x+6=??).

To create the formula/ratio I divided 10inches by 4inches. Thus the larger triangle is 2.5 times larger than the smaller one.

I then use this ratio to figure out the missing length of the larger triangle by doing:

6inches x 2.5 = 15inches.

I then inputed the 15inches into the formula of the missing side:

x+6=15

Subtracted 6 from both sides to simplify, and came up with the solution!

x=9

Let me know if this helps!

4 0
2 years ago
Find the coordinates of the centroid of triangle RST. SHOW YOUR WORK so I can see if the answer makes sense (no links)
zimovet [89]

Note the coordinates of each point: R(-4, 5), S(5, 1), T(2, -3).

The centroid is the point whose coordinates are the average of the coordinates of R, S, and T.

<em>x</em>-coordinate: (-4 + 5 + 2)/3 = 3/3 = 1

<em>y</em>-coordinate: (5 + 1 - 3)/3 = 3/3 = 1

So the centroid is (1, 1).

3 0
2 years ago
What is the vertex of g(x) = -3/? + 2<br> (3, -25)<br> (-3,-25)<br> (3,29)<br> (-3, 29)
Orlov [11]

Answer:

(3,-25)

Step-by-step explanation:

6 0
3 years ago
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