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Kay [80]
4 years ago
12

How many sides does a regular polygon have if its exterior angles A. 45B. 30

Mathematics
1 answer:
ser-zykov [4K]4 years ago
3 0
I) 45^{0}
The number of sides=\frac{360}{45}
The number of sides =8 sides

ii) 30^{0}
The number of sides= \frac{360}{30}
The number of sides= 12
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David can run 4 miles in 75 minutes .what is Davides jogging rate per hour ?
Nina [5.8K]

Answer:

3.2 miles per hour

Step-by-step explanation:

Time=75 minutes=75/60=5/4=1.25 hours

Speed=Distance/time=4/1.25=3.2 miles per hour

David's jogging rate is 3.2 miles per hour.

4 0
4 years ago
The store ordered small posters and large posters to promote their opening 12 times as many small posters were ordered as large
navik [9.2K]
45 times 12 is 540. I think 540 posters
7 0
3 years ago
Read 2 more answers
But, during the same summer, teachers stopped wearing high heels; each of them became 4% shorter. Copy and fill in the chart. Te
alexgriva [62]

Answer:

It is given that,

'When the teachers stopped wearing heels, they became 4% shorter'.

So, the relation becomes,

<em>Height without heels = Height with heels - 4% of height with heels</em>

Then, we have,

1. Ms. Mathey is 190 cm with heels.

So, Ms. Mathey = 190-4% of 190 = 190 - 7.6 = 182.4 cm  without heels

2. Mrs. Meansy is 162.5 cm with heels.        

So, Mrs. Meansy =  162.5-4% of 162.5  = 162.5 - 6.5 = 156 cm  without heels

3. Ms. Cool is 140 cm with heels.

So, Ms. Cool = 140-4% of 140 = 140 - 5.6 = 134.4 cm  without heels

Also, the relation can be written as,

<em>Height with heels = Height without heels + 4% of height without heels</em>

4. Miss Short is 155.1 cm without heels

So, Miss Short = 155.1+4% of 155.1 = 155.1+6.2 = 161.3 cm with heels        

5. Miss Lora is 159.8 cm without heels

So, Miss Lora =  159.8+4% of 159.8  = 159.8+6.4 = 166.2 cm with heels

Thus, the final table is,

                          Height with Heels                Height without Heels

Ms. Mathey               190 cm                                       182.4 cm

Mrs. Meansy             162.5 cm                                    156 cm

Ms. Cool                   140 cm                                       134.4 cm

Miss Short                 161.3 cm                                      155.1 cm

Miss Lora                  166.2 cm                                     159.8 cm

8 0
3 years ago
A rectangle has an area of 24 square units and a side length of 234 units. Find the other side length of the rectangle.
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It would be 24 divided by 234
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3 years ago
Which of the following pair of right triangles cannot be proven to be congruent? Select all that apply.
Gelneren [198K]
Pic 2 last one hope this helps you
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3 years ago
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