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fenix001 [56]
4 years ago
13

What are the surface area and volume of a regular triangular pyramid with a height of 9 cm and a slant height of 15 cm?

Mathematics
1 answer:
d1i1m1o1n [39]4 years ago
3 0
I believe it is 135.
Hope this helps
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What is the value of x?<br><br> Enter your answer, as a decimal, in the box.
iragen [17]

Answer:

x = 67.50 ft

Step-by-step explanation:

Consider, ΔMAB and ΔMNP,

∠M = ∠M (Common)

Given AB║NP and let MN as transversal,

∠MAB = ∠MNP (alternate angle)

Also, Given AB║NP and let MP as transversal,

∠MBA = ∠MPN (alternate angle)

Therefore, ΔMAB ≅ ΔMNP (By AAA similarity )

Thus, by CPCT,

\frac{MA}{MN}=\frac{MB}{MP}=\frac{AB}{NP}

consider first two ratios,

\frac{MA}{MN}=\frac{MB}{MP}

Substitute the values, MA = MN - AN = 49.5 ft

\frac{49.5}{71.5}=\frac{x}{97.5}

On solving for x , we get, x = 67.50 ft

Thus, value of x is 67.50 ft


3 0
3 years ago
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What property would you use to solve. X/5 = 3
OLEGan [10]

Answer:

Multiplication

Step-by-step explanation:

x/5 = 3

Multiply by 5

x = 15

5 0
3 years ago
**WILL GIVE THE BRAINLIEST! &amp; LIKE**
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Answer:

n = -2

Step-by-step explanation:

add 7 to both sides

1+8n = -15

subtract 1 from both sides

8n = -16

divide both sides by 8

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The area of square is 36 square meters. what is the length (in meters) of one side in the square
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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

14 1/2 - 10 7/8 can be re-written using improper fractions

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116/8 - 87/8 = 29/8 = 3 5/8 gal

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3 years ago
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