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
lisov135 [29]
3 years ago
9

The base edge of the regular triangular pyramid is b=10 cm and altitude of the base hb ≈ 8.66 cm. The slant height of the pyrami

d is k=8 cm. Find:
Lateral area of the pyramid
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0

Answer:

The lateral area of the pyramid is 120\ cm^{2}

Step-by-step explanation:

we know that

The lateral area of the pyramid is equal to the area of its three triangular lateral faces

so

LA=3[\frac{1}{2}(b)(k)]

where

b=10\ cm

k=8\ cm ------> the slant height

substitute the values

LA=3[\frac{1}{2}(10)(8)]=120\ cm^{2}

You might be interested in
If ABCD is dilated by a factor of 1/2, the coordinate of C' would be:​
rewona [7]

Answer:

Hello Love! Answer: 1, 2

Step-by-step explanation:

dilating by 1/2 is just a fancy way of saying divide the coordinates by 2 so 2÷2 = 1 and 4 ÷ 2 = 2

Hope this helps! Was doing this is math this week!

4 0
3 years ago
Find the length of a square whose area is 0.0084m​
TiliK225 [7]

Answer:

.091651514m

Step-by-step explanation:

The area of a square is found by

A = s^2 where s is the side length

.0084 = s^2

Take the square root of each side

\sqrt{.0084} = \sqrt{s^2}

.091651514 = s

4 0
2 years ago
Read 2 more answers
Find the equation of the straight line that passes through the points (1, 10) and (3, 2)
slava [35]

Answer:

y = -4x+14

Step-by-step explanation:

First find the slope

m = (y2-y1)/(x2-x1)

m = (2-10)/(3-1)

  =-8/2

  = -4

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

y = -4x+b

Substitute a point into the equation

10 = -4(1)+b

Add 4 to each side

14 = b

y = -4x+14

8 0
3 years ago
Read 2 more answers
ANSWER THIS FAST I NEED IT DONE IT 5 MIN HELP PLZZZZZZZZZZZZZ
Nat2105 [25]
For the first one the slope is 0.5
For the second one the slope is -1.7
6 0
3 years ago
Tom spent $28,000 for a new car. The car will depreciate 10% each year. What will the car
Papessa [141]

Answer:

Step-by-step explanation:

14000 after 5 years

4 0
3 years ago
Other questions:
  • If you double a number and then add 16, you get 2/5 of the original number. What is the original number?
    7·1 answer
  • Help me please. picture is attached.
    6·2 answers
  • (5x + 4) + (- 8x - 2)
    10·2 answers
  • six more than the product fof four times the differences between x and 3. What is the value of the expression when x=8?
    14·1 answer
  • 40% of OatyPop cereal boxes contain a prize. Hannah plans to keep buying cereal until she gets a prize. What is the probability
    13·2 answers
  • Solve for x and y.
    13·1 answer
  • Marty says he would rather have --$5 than $0 do you agree with Marty?
    7·1 answer
  • Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
    10·2 answers
  • Which bottle of shampoo is at the right price 12oz 2.59 16 oz 3.19
    7·2 answers
  • If APQR - ASTU, which statement must be true?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!