1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phantasy [73]
3 years ago
15

Calcular el área total del cubo si s=5√2

Mathematics
1 answer:
Elena L [17]3 years ago
7 0
Let l the length of a side edge and d the length of diagonal of a side 
so than using sin we can writing 

sin45 = l/d

sqrt2 /2 = l/d

and given that this area s=5sqrt2 what is equal l*d so in this case there are 

l/d = sqrt2 /2
l*d = 5sqrt2   => l = 5sqrt2 /d   and this subtituted in place of l inside the first equation we get 

(5sqrt2 /d)/d = sqrt2 /2

5sqrt2 /d^2 = sqrt2 /2

10sqrt2 = d^2 *sqrt2  divide both sides by sqrt2

10 = d^2

d = sqrt10  so than d = sqrt10 result l = 5sqrt2 /sqrt10 = 5sqrt20 /10 = 

= sqrt20 /2 = 2sqrt5 /2 = sqrt5

l = sqrt5
d = sqrt10

so area total del cubo = 6*l^2 = 6*(sqrt5)^2 = 6*5 = 30 unit squared 
so choice d) is right sure 

hope this will help you 





You might be interested in
Determine the most useful measure of center for each of the following situations.
Nesterboy [21]

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

5 0
3 years ago
5.6=0.02z+7.38, solve for z and explain
Anna71 [15]
Yes I got -89
Hope it helps
7 0
4 years ago
A 15 | tall adult giraffe standing next to a ladder casts a 5 ft shadow. If the ladder is 12 ft tall, then how long is its shado
natima [27]

Answer:

Step-by-step explanation: bjffngjkldsldgns

3 0
3 years ago
How do you graph y=(x+2)^2+5 and find the vertex, the equation for the axis of symmetry and two other points on the graph with t
SVETLANKA909090 [29]
You Just Put It Like That In The Calculator And Look At The Line But Like In The Middle In The Top And That's Going To Be The Answer..
8 0
3 years ago
Solve for the value of t (photo)
alexdok [17]
Since the angle they have to equal is 97 the answer is 12
7 0
3 years ago
Other questions:
  • Please help me with this math question i'm not good at math and i don't understand this well
    5·2 answers
  • How many hours will it take to complete a 76km bike ride if you go bike ride if you go 14km per hour the whole time?
    12·1 answer
  • A scale drawing of a rectangular object has a scale of 1 in. : 3 ft. The scale drawing has a length of 5 inches. What is the act
    6·1 answer
  • A new exhibit at the museum focuses on skin, the body's largest organ! It differs in thickness all over your body. The soles of
    14·1 answer
  • Which math statement does not contain a variable?
    14·2 answers
  • The angle of elevation of the top of a tower from a point 100m away is 45 degrees. What is the height of the tower to the neares
    15·2 answers
  • What is the value of p<img src="https://tex.z-dn.net/?f=-8p%5Cgeq%2016" id="TexFormula1" title="-8p\geq 16" alt="-8p\geq 16" ali
    13·1 answer
  • Can someone help me with this?
    6·2 answers
  • What is the area????
    7·1 answer
  • Express in the form 1:1.<br> Give 12 as a fully simplified fraction<br> 8:6
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!