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
Greeley [361]
3 years ago
9

A regular triangular pyramid has a base and lateral faces that are congruent equilateral triangles. It has a lateral surface are

a of 57 square centimeters. What is the surface area of the regular triangular pyramid?
Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0
57 cm^2 is equal to the lateral surface area, or the three sides in this case.

57/3= 19 cm^2 per side. Because the base is equal to the area of the side, this is the base area.

19+57= 76 cm^2 for sides+ base (total surface area)

Final answer: 76 cm^2
You might be interested in
Number 6 and 7 asap please help
netineya [11]

Hello!

We will write and solve this equation below.

6.

x-24=35

Add 24 to both sides.

x=59

7.

4c=28

Divide both sides by 4.

c=7

I hope this helps!

3 0
3 years ago
Read 2 more answers
A+b-c=180 Solve the equation
VladimirAG [237]
You can do it in multiple ways but mine is....     140+120-160=180
3 0
3 years ago
Read 2 more answers
A fish tank holds at most 125 gallons of water. The tank already has 20 gallons of water in it when Ian begins to fill it at a r
ivolga24 [154]

Answer:

ttgfuytggghghhhtxjfhfughfhfgfhg

3 0
3 years ago
PLZ HELP! Lenny is 3 times older than Max. When you subtract Max’s age from Lenny’s age, you get 24. How old is Lenny and how ol
tresset_1 [31]
Hi!

(l = Lenny
m = Max)

Lenny is 3 times as old as Max.
3m = l

When you subtract Max's age from Lenny's age, you get 24.
L - m = 24

Put in the value of l.
3m - m = 24
There is our equation.

Now solve

2m = 24
2m/2 = 24/2
m = 12

3 * 12 = l
36 = l

The equation is 3m - m = 24
Max is 12 and Lenny is 36.

Hope this helps! :)
-Peredhel
6 0
3 years ago
Read 2 more answers
Please help with this parallelogram<br> ! :)
SIZIF [17.4K]

hey there,

<h2>A)Both pair of opposite side are parallel </h2>

option (A) is correct

7 0
2 years ago
Read 2 more answers
Other questions:
  • a calculator has 50 keys in five colors grey black blue yellow and green their 6 gray keys for every 7 blue Keys write a possibl
    12·2 answers
  • What is seven times 34 hours
    14·2 answers
  • Before he went to the toy store, David had 13 toy cars. Forthe next 5 weeks he buys n number of cars each week.Which algebraic e
    14·1 answer
  • Why is 5.1 a rational number
    12·1 answer
  • This prism has a surface area of 172 cm². What would the surface of the prism be if each dimension was tripled? ( Scale factor i
    12·1 answer
  • There are 6 blue marbles, 4 red marbles, 7 green marbles, and 3 yellow marbles in a bag. Find the probability of choosing a blue
    7·1 answer
  • Help with num 3 please. thanks​
    11·1 answer
  • Whats is the slope of (-5,-2) (8,13)
    5·2 answers
  • Please help fasttttttttt
    15·2 answers
  • Can you help with this please.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!