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Yuki888 [10]
3 years ago
12

Please help me figure this out!!!!!!

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
The answer is 129.13 is your answer. Remember, t<span>he perimeter of the base is 4s since it is a square. There is no formula for a </span>surface area<span> of a non-regular </span>pyramid<span> since slant height is not defined. To </span>find<span> the </span>area<span>, </span>find<span> the </span>area<span> of each face and the </span>area<span> of the base and add them.</span>
Sauron [17]3 years ago
8 0
Total surface area of pyramid = area of base + area of 4 triangular faces

area of base = 6.4*6.4 = 40.96 cm²
area of one triangular face = 1/2 * 6.4 * 6.1 = 19.52 cm²

Surface area of pyramid = 40.96 + 4 * 19.52 = 119.04 cm²
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How do you know that 50 is not a perfect square?
Alexus [3.1K]
We can always do a prime factoring of it, and check

50 = 2*5*5
        2*5²

a perfect square, so-called, is the resulting number of a squared value, well 50 is not the result of anything squared, is the result of 3 factors, in this case 2,5 and 5.

a perfect square will be something like say 64, or 144, because

64 = 8*8
        8²

144 = 12*12
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6 0
2 years ago
A cylindrical tube has a radius of 4 inches and a height of 14 inches could some one help me find the volume
pickupchik [31]
The volume of the cylinder is the area of the base (a circle) times the height (you can immagine taking a disk, the base, and translate it along the height to "fill" the cylinder).
So you have:
V=area.circle*height= \pi  r^{2}*h = \pi  4^{2} *14=703.4  in^{2}
8 0
3 years ago
Due tomorrow plz help me
drek231 [11]
7y-3°=3y+13°
7y-3y= 13°+3°
4y= 16°
y=4°

Substitute y
7(4)-3°= 25°
3(4)+13=25°

180°-25°-25°=130°

2(2x+3)°+130°=180°
4x+136°=180°
4x=44°
x=11°
6 0
2 years ago
Please someone help i dont know this :(
steposvetlana [31]

Answer:

D) None of the above

Step-by-step explanation:

These are no supplementary or complimentary because they do not add up to 180 and to be vertical they would have to be across from each other

5 0
2 years ago
If the shape of an object changes the perimeter will always change true or false
Ugo [173]

The answer is false due to the object is changes shape not size

6 0
3 years ago
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