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Pani-rosa [81]
3 years ago
15

A pentagonal pyramid has a height of 20m; its a regular pentagonal of 4m of side. If the area is of the base of the pyramid is 2

48m2 find the total surface of the solid.​
Mathematics
1 answer:
const2013 [10]3 years ago
7 0

Answer:

i d :- 257 473 5835 pc:- 1234

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Question is in the pictures
SIZIF [17.4K]

360 /12 = 30

Each 5 minutes is 30 degrees

2*pi/12 = pi/6

each 5 minutes is pi/6 degrees


pi/3 = 2*pi/6 = 2 * pi/6  = 2* 5 minute = 10 minutes  

 the minute hand moves from 4 to 6


2 * pi/3 = 2 * (2*pi/6) = 4 *(pi/6) = 4 * 5 minutes = 20 minutes

The minute hand moves from 3 to 7


5 * pi/6 = 5 * 5 minutes = 25 minutes

the minute hand moves from 5 to 10


7 * pi/6 = 7 * 5 minutes = 35 minutes

the minute hand moves from 2 to 9


6 0
3 years ago
In a scale drawing of a house, 1 inch=4 1/2 feet. If the length of a kitchen is 2 1/4 inches on a scale drawing, what is the act
ch4aika [34]

Answer:

10.125 feet.

Step-by-step explanation:

you can use the rule of three to answer this question, the data we have is:

inches      feet

     1      →   4 1/2

  2 1/4    →   x

tha last table just indicates what the problem tells us, that one inch is equal to 4 1/2 feet and we want to know how much in feet the 2 1/4 inches are.

For this we multiply the cross quantities:

x=(2\frac{1}{4} )(4\frac{1}{2} )=2.25*4.5=10.125 ft

the actual length of the kitchen is 10.125 feet.

   

7 0
4 years ago
QUESTION 2
WITCHER [35]

Answer: 106.76yards

Step-by-step explanation:

Circumference of a circle is given as:

= 2πr

where,

π = 3.14

r = 17 yards

Circumference = 2πr

= 2 × 3.14 × 17.

= 106.76yards

Therefore, the circumference of the circle will be 106.76yards

6 0
3 years ago
Simplify.
djverab [1.8K]
15m + 2n, first you have to pair the matching variables, 8m and 7m along with the sign in front of them. so 8m(+7m), you would then add those then do the same with the other, +4n(postive) and -2n, so subtract 2 from 4 and get 2. put them together and it’s 15m+2
5 0
3 years ago
What is the slope of the line that passes through (-6,1) and (2,5)?
kow [346]
Slope is simply rise/run.
or
(vertical shift)/(horizontal shift)
therefore, the x value went from -6 to 2 which means it vertically shifted by 8.
and the y value went from 1 to 5, which means it horizontally shifted by 4.
the slope is 8/4.
or 2.
8 0
3 years ago
Read 2 more answers
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