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tamaranim1 [39]
3 years ago
5

A regular tetrahedron is a special triangular pyramid with four congruent faces that are equilateral triangles. A net of a regul

ar tetrahedron is shown below. the numbers are 5cm and 4cm Which of the following is not true about the regular tetrahedron? The lateral surface area is 30 cm2. The tetrahedron has two bases. The total surface area is 40 cm2. The base is congruent to each face
Mathematics
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

the tetrahedron has two bases

Step-by-step explanation:

a tetrahedron has only one bases which is a triangle

so this is not true

hope this helps

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A pipe is 36 feet long. It needs to be cut into pieces that are each 3/4 feet long. How many pieces can be made from the pipe?
Ket [755]

108/4 = 27 pieces you multiply 36 x 3 = 108 and the denominator stays the same so 108/4 equals to 27 pieces

4 0
3 years ago
Plz help!<br><br>Find the missing angle measurements.<br>60°<br>64°<br>45°<br>49°<br>53°​
olganol [36]

Answer:

45° 60° 64°

Step-by-step explanation:

Little triangle:180-(64+71)=45

Big triangle :180-(64+56)=60

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What is 78.6 in word form
vekshin1
78.6 = Seventy eight and six tenths.
7 0
3 years ago
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A<br> 9x - 40<br> B<br> 3x + 20<br> x = [?]
Mrrafil [7]

Answer:

x = 10

Step-by-step explanation:

9x - 40 = 3x + 20

<u>9</u><u>x</u><u> </u><u>-</u><u> </u><u>3</u><u>x</u> - 40 = <u>3x - 3x</u> + 20

6x - 40 = 20

6x <u>-</u><u> </u><u>40</u><u> </u><u>+</u><u> </u><u>40</u> = <u>20</u><u> </u><u>+</u><u> </u><u>40</u>

6x = 60

<u>6x</u><u> </u><u>/</u><u> </u><u>6</u> = <u>60</u><u> </u><u>/</u><u> </u><u>6</u>

x = 10

Now plug the x value in the equation to make the statement true that A is parallel to B.

9x - 40

<u>9</u><u>(</u><u>10</u><u>)</u> - 40

<u>90</u><u> </u><u>-</u><u> </u><u>40</u>

50

3x + 20

<u>3</u><u>(</u><u>10</u><u>)</u> + 20

<u>30</u><u> </u><u>+</u><u> </u><u>20</u>

50

Therefore, x = 10 making the statement true that A is parallel to B. Hope this helps and stay safe, happy, and healthy, thank you :) !!

7 0
3 years ago
Read 2 more answers
Ummm help ig please................
AlexFokin [52]

Answer:

Cost of 500 g of standard pack = € 7.50

Cost of 1 g of standard pack = 7.50/500

Cost of 100 g of standard pack = 7.50/500 ×100

= 7.50/5

= € 1.50

Hope it helps uh dear

8 0
3 years ago
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