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BartSMP [9]
3 years ago
7

How many sides are in this triangular pyramid ?

Mathematics
1 answer:
miv72 [106K]3 years ago
7 0
There r 4 sides the bottom and the 3 sides
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I WILL GIVE BRAINLIEST!!! PLZ HELP ASAP!!!!!!
9966 [12]

The set 18 , 24 , 30 represents a Pythagorean triple ⇒ answer B

Step-by-step explanation:

Let us explain how to check the set represents a Pythagorean triple

1. Square the largest number

2. Find the sum of the squares of the other 2 numbers

3. Check if the square of the largest number equal the sum of the

   squares of the other 2 numbers or not, if they are equal then the

   set represents a Pythagorean triple

A. In set 60 , 70 , 100

∵ The longest side is 100 cm

∴ (100)² = 10,000

∵ (60)² + (70)² = 8,500

∵ (100)² ≠ (60)² + (70)²

∴ The set doesn't represent a Pythagorean triple

B. In set 18 , 24 , 30

∵ The longest side is 26 cm

∴ (30)² = 900

∵ (18)² + (24)² = 324 + 576 = 900

∵ (30)² = (18)² + (24)²

∴ The set  represents a Pythagorean triple

C. In set 10 , 14 , 17

∵ The longest side is 17 cm

∴ (17)² = 289

∵ (10)² + (14)² = 100 + 196 = 296

∵ (17)² ≠ (10)² + (14)²

∴ The set doesn't represent a Pythagorean triple

D. In set 10 , 20 , 30

∵ The longest side is 30 cm

∴ (30)² = 900

∵ (10)² + (20)² = 100 + 400 = 500

∵ (30)² ≠ (10)² + (20)²

∴ The set doesn't represent a Pythagorean triple

The set 18 , 24 , 30 represents a Pythagorean triple

Learn more:

You can learn more about Pythagoras Theorem in brainly.com/question/1238144

#LearnwithBrainly

8 0
3 years ago
Having a hard time understanding these transformations. Thank you!​
Oksanka [162]

Answer:

1). For < 4 Coordinates will be A"( -2,2),B"(1,-1),C"(-3,-2).

   For 1 > Coordinates will be A"(3,2), B"(6,-1), C(2,-2).

2). A"(-2,2), B"(-1,-2), C"(-5,-1).

Step-by-step explanation:

1) In this part of the question we have to find the new coordinates of the triangle when there is a shift of 4 in left means the new coordinates will be A"( 2-4,2),B"(5-4,-1),C"(1-4,-2) Or  A"( -2,2),B"(1,-1),C"(-3,-2).

And when shifted by 1 in right direction A,B,C will be A",B",C" that are A"( 2+1,2),B"(5+1,-1),C"(1+1,-2) Or A"(3,2), B"(6,-1), C(2,-2).

2) Now we have to get the reflection of points A(2,2), B(5,-1), C(1,-2) across Y axis.

When A reflects about Y axis it will reflect in Second quadrant. So new coordinates will be A"(-2,2).

Similarly B and C will reflect in third quadrant. So new coordinates will be B"(-1,-2) & C"(-5,-1).

8 0
3 years ago
Find the surface area of the cube shown below.<br> units?<br> 2 1/2
VARVARA [1.3K]

Answer:

SA = 37.5 units^2

Step-by-step explanation:

2 1/2 = 2.5

the Surface Area of the cube

SA = 6a^2

SA = 6(2.5)^2

SA = 6(6.25)

SA = 37.5 units^2

4 0
3 years ago
The price of an mp3 player is reduced to three-fourths of its original price. The new price is $75. Find the original price of t
In-s [12.5K]

Answer:

The original price of the mp3 player would be $150

Step-by-step explanation:


7 0
4 years ago
Struggling so much with number 18 I need help plz someone help me
lilavasa [31]

Answer:

I think it is B

Step-by-step explanation:

4 0
3 years ago
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