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3) The area of a triangle is [tex]48 \, \text{cm}^2[/tex]. The base is [tex]12 \, \text{cm}[/tex]. Find the length of its corresponding altitude.

Use the formula for the area of a triangle:

[tex]\[
\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}
\][/tex]

Solve for the height.


Sagot :

Let's correct the given problem statement first for clarity:

"The area of a triangle is 48 cm². The base is 12 cm. Find the length of its corresponding altitude."

To find the altitude of the triangle, we can use the formula for the area of a triangle:

[tex]\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \][/tex]

Given:
- Area ([tex]\(A\)[/tex]) = 48 cm²
- Base ([tex]\(b\)[/tex]) = 12 cm

We need to find the height ([tex]\(h\)[/tex]).

Let's start by writing down the area formula:
[tex]\[ 48 = \frac{1}{2} \times 12 \times h \][/tex]

To isolate [tex]\(h\)[/tex], we need to solve for [tex]\(h\)[/tex]:

1. Multiply both sides by 2 to eliminate the fraction:
[tex]\[ 2 \times 48 = 12 \times h \][/tex]

2. Simplify the left side:
[tex]\[ 96 = 12 \times h \][/tex]

3. Now, divide both sides by 12 to solve for [tex]\(h\)[/tex]:
[tex]\[ h = \frac{96}{12} \][/tex]

4. Simplify the division:
[tex]\[ h = 8 \][/tex]

Therefore, the length of the altitude corresponding to the given base of 12 cm is 8 cm.
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