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igomit [66]
3 years ago
6

What is the volume of a square pyramid with a base length of 4 cm and a height of 9 cm? Enter your answer in the box. cm³

Mathematics
2 answers:
Vilka [71]3 years ago
8 0

The base length of a square pyramid given = 4 cm

The height given = 9cm.

We have to find the volume of the square pyramid.

The formula to find the volume of the square pyramid is

V = \frac{1}{3}a^2h

Here a = 4 cm and h = 9 cm

To get the volume we will plug in the values of a and h here in the formula.

V = \frac{1}{3} (4)^2(9)

V = \frac{1}{3} (16)(9)

V = \frac{1}{3} (144)

V = \frac{144}{3}

V = 48

We have got the required answer.

The volume of the square pyramid = 48 cm^3

nikitadnepr [17]3 years ago
7 0
The volume is 48 cm.
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3 years ago
Sorry am dumb I need help pls hurry:/
victus00 [196]

Answer:

x = ±20

Step-by-step explanation:

Step 1: Write equation

x² = 400

Step 2: Square root both sides

x = ±√400

x = ±20

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

20² = 400

400 = 400

(-20)² = 400

400 = 400

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3 years ago
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A rectangle with an area of 81 cm² has a length that is 3 times the width. How long is the width of the rectangle? Round to the
LenaWriter [7]

Answer:

W ≈ 5.2 cm

Step-by-step explanation:

Represent the length and width by L and W respectively.

Then L * W = 81 cm^2, and L = 3W.

Substituting 3W for L in the first equation, we get:

3W * W - 81 = 0, or 3W^2 - 81 = 0.

To make it easier to find the final answer, rewrite 3W^2 - 81 = 0 as

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              3

Then W (the width) is the positive square root of 27, or W ≈ 5.2 cm

3 0
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<u>Given:</u>

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Thus, Option A is the correct answer.

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3 years ago
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