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Sloan [31]
3 years ago
10

Find the lateral area the regular pyramid. (50 points)

Mathematics
1 answer:
babymother [125]3 years ago
5 0

Answer:

The lateral area the regular pyramid = 18√91 square units

Step-by-step explanation:

It is given a regular hexagon.

From the figure we get the base edge of the pyramid is 6 units

(Since the base of pyramid is regular hexagon

<u>To find the lateral edge </u>

Lateral edge is the hypotenuse of triangle with base = 6 and height = 8

Lateral edge =√(8² + 6²) = √100 = 10

To find the slant height

Slant height is the height of triangle with,

base = 6/2 = 3 and hypotenuse = 10

Slant height = √(10² - 3²) = √(100 - 9) = √91

<u>To find the area of single face</u>

Area = bh/2

b = 6 and h =  √91

Area = (6 * √91)/2 = 3√91

To find the lateral area of pyramid

Lateral area = 6*face area = 6*3√91 = 18√91 square units

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yanalaym [24]

Answer:

Length: 16m

Width: 12m

Area: 192 square meters

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

3 0
3 years ago
Read 2 more answers
#10
amm1812

Answer:

There are 3 green marbles in the box.

Step-by-step explanation:

15% = 0.15

To figure out how much 15% of 21 is, you must multipl the decimal form of the percentage by the whole number. This will give you how much of that number that percentage is.

0.15 * 21 = 3.15  

But you can't have 0.15 of a marble, so you must round as well.

3 green marbles in the box.

3 0
3 years ago
© Solve the simultaneous equations<br> -3x + y= – 8<br> 3x + 2y = – 13<br> X =?<br> y =?
DENIUS [597]

Answer:

x=1/3

y=-7

Step-by-step explanation:

using the elimination method, you can add both equations vertically, to eliminate the x

-3x+y=-8

3x+2y=-13

3y=-21

y=-7

we then fix the value of y into the first equation

-3x+y=-8

-3x-7=-8

-3x=-8+7

-3x=-1

x=1/3

5 0
3 years ago
There are 8 animals in the barn. Some are ducks and some are buffalo. There are 24 legs in all. How many of each animal are ther
faltersainse [42]

Answer: 4 buffalos and 20 chickens (i think)

Step-by-step explanation:

2x+4y= 8

Ducks have 2 legs and buffalos have 4.

x= ducks y=buffalos

2(24-y)+4y=24

48-2y+4y=40

2y=8

y=4

4 buffalos

x+y=24

x=24-y

x=24-4

x=20

20 ducks

3 0
3 years ago
The parallel sides of a Trapezium are 77 and 60 and its non parallel sides are 26 and 25 m find the area of trapezium
Artemon [7]

Answer:

Area of Trapezium=1/2h(L1+L2)

I think it will help you

7 0
2 years ago
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