Answer:
17
Step-by-step explanation:
- midpoint means half
- Let's name side 15 as A,11 as B and 8 as C
- 0.5 of A is 0.5×15=7.5
- 0.5 of B is 0.5×11=5.5
- 0.5 of C is 0.5×8=4
- Perimeter of small triangle =A+B+C
- 7.5+5.5+4=17
The area of the given square pyramid is:
total area = 1,100 inches squared.
<h3 /><h3>
How to get the area of the pyramid?</h3>
On the second image, we can see that the pyramid is conformed of a square base and 3 triangles.
To get the surface area of the pyramid, we can just get the area of each of these simpler parts.
The base is a square of 22 in by 22 in, then the area of the base is:
B = (22in)*(22 in) = 484 in^2
For each triangle, the area will be:
A = (base side)*(height)/2
A = (22in)*(14in)/2 = 154 in^2
And we have 4 of these triangles, then the total area of the pyramid will be:
total area = B + 4*A = 484in^2 + 4*(154 in^2) = 1,100 in^2
If you want to learn more about square pyramids:
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Proof by Contraposition.
Let me know if I was correct or horribly wrong.
The experimental probability of getting a multiple of 3 is .
Given that, Angelique throws a different six-sided dice 120 times.
<h3>What is Probability in maths?</h3>
Probability denotes the possibility of something happening. It's a field of mathematics that studies the probability of a random event occurring. From 0 to 1, the value is expressed. Probability is a mathematical concept that predicts how likely occurrences are to occur.
We know that,
Number of favourable outcomes =21+24=45
Total number of outcomes = 120
Probability of getting a multiple of 3=
Therefore, the probability of getting a multiple of 3 is .
To know more about probability visit:
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That is an interesting fact thank you for sharing your information