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makkiz [27]
3 years ago
12

Rachel has a toy shaped like a triangular pyramid in which the base and the lateral faces are congruent equilateral triangles. T

he side lengths of the triangles are 4 inches. The height of each triangle is about 3.5 inches. Rachel wants to cover all the lateral surfaces except for the base with yellow paper.
The amount of paper required to cover the lateral surfaces is about square inches. If she wants to cover the entire pyramid with yellow paper, she would require about more square inches of paper.
Mathematics
1 answer:
astra-53 [7]3 years ago
7 0
The lateral area that Rachel needs to cover is 21 inches.
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Step-by-step explanation:

Answer is shown in the attachment.

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Which of these are characteristics of good experimental design? Check all that apply. Good experimental design uses different me
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3 years ago
Armando has some coins in his pocket. 3 dimes 2 quarters 2 pennies 5 nickles What is the probability that he will pull out a nic
Licemer1 [7]

The probability that he will pull out a nickel, then a quarter, then a nickel is \frac{1}{33}

<u>Explanation:</u>

Given:

Number of dimes = 3

Number of Quarters = 2

Number of pennies = 2

Number of Nickles = 5

Total coins = 3 + 2 + 2 + 5

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Probability that Armando will pull out Nickel first = \frac{5}{12}                                                      

After taking out Nickel, the total number of coins in the pocket will be 11

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Probability that he will take our Nickel = \frac{4}{10} = \frac{2}{5}

Total probability = \frac{5}{12} X \frac{2}{11} X\frac{4}{10}

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5 0
3 years ago
What is the measure of x?<br> A.36<br> B.72<br> C.144<br> D.360
Helga [31]
We know that the interior angles of a trapezoid add up to 360 degrees. 

Write out an equation to represent this situation; 

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Hope I helped :) 
4 0
3 years ago
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prohojiy [21]

Answer:

Step-by-step explanation:

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4 0
4 years ago
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