All categories

3 years ago

The surface area of a triangular pyramid is 408 m2.

Mathematics

2 answers:

adoni [48]3 years ago

7 0

Take 408/4 because there are 4 faces so that equals 102 m2

liq [111]3 years ago

6 0

Answer: D. $102\ m^2$

Step-by-step explanation:

Given : The surface area of a triangular pyramid is $408 m^2$ .

We know that the total number faces in a triangular pyramid =4

If all the faces of the pyramid are congruent, then the area of one face of this pyramid will be :_

$408\div 4=102\ m^2$

Hence, the area of one face of this pyramid = $102\ m^2$

You might be interested in

In Amy’s backyard, there are also chickens and rabbits. There are 5 more chickens than rabbits. The total number of legs is 130.

Butoxors [25]

Answer:

There are 25 chickens and 20 rabbits

Step-by-step explanation:

Let

x-----> the number of chickens

y ----> the number of rabbits

Remember that

1 chicken has two legs

1 rabbit has four legs

2x+4y=130 -------> equation A

x=y+5 -----> equation B

Substitute equation B in equation A and solve for y

2(y+5)+4y=130

2y+10+4y=130

6y=120

y=20 rabbits

Find the value of x

x=y+5

x=20+5=25 chickens

3 0

2 years ago

The sum of two numbers is no more than 28. Let x represent the first number, and let y represent the second number. Which inequa

labwork [276]

D, because the sum is no more than 28 so it could be equal or less than.

3 0

2 years ago

Read 2 more answers

.125 as a fraction .

Oduvanchick [21]

Answer:

1/8

Step-by-step explanation:

7 0

2 years ago

(GEOMETRY), please help meee

Dmitry [639]

14. Trick question, ignore the side.

Call the angle b.

34 + b + b = 180

2b = 146

b = 73

choice b

15. That's intersecting chords so the product of the segment lengths are equal:

5(22)=10 x

x = 5(22)/10 = 11

choice a

16. Intersecting tangent and secant;

$x^2 = 5(19)$

$x = \sqrt{95} \approx 9.75$

Choice a

5 0

2 years ago

Who knows the answer??

Vanyuwa [196]

14: no she got 69% 38/55 = 69%

8 0

2 years ago