Triangle Area Calculation: Finding Area with 3m Base and 2/3m Height

What is the area of a triangle whose side length is3 3 meters and its height 23 \frac{2}{3} meters?

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:08 Let's find the area of the triangle.
00:11 We'll use the formula: Area equals base times height, divided by two.
00:17 First, substitute the base and height with the given numbers.
00:23 Then, we'll change the whole number to a fraction.
00:30 Remember to multiply the numerators together, and multiply the denominators together.
00:35 Now, we'll simplify the fraction as much as we can.
00:45 Next, change the fraction back to a whole number if possible.
00:49 And that's the solution! We've found the area of the triangle.

Step-by-step written solution

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1

Understand the problem

What is the area of a triangle whose side length is3 3 meters and its height 23 \frac{2}{3} meters?

2

Step-by-step solution

To determine the area of the triangle, we will proceed as follows:

  • Identify the base and height from the problem.
  • Use the formula for the area of a triangle, A=12×b×h A = \frac{1}{2} \times b \times h .
  • Substitute the given values and compute the area.

First, the base b b of the triangle is 3 3 meters, and the height h h is 23 \frac{2}{3} meters. To find the area, we will use the formula:

A=12×b×h A = \frac{1}{2} \times b \times h

Substituting, we get:

A=12×3×23 A = \frac{1}{2} \times 3 \times \frac{2}{3}

We begin by calculating the multiplication inside the formula:

A=12×(3×23) A = \frac{1}{2} \times \left(3 \times \frac{2}{3}\right)

Here, 3×23=63=2 3 \times \frac{2}{3} = \frac{6}{3} = 2 .

Then, multiply by 12 \frac{1}{2} :

A=12×2=1 A = \frac{1}{2} \times 2 = 1 .

The area of the triangle is 1 1 square meter.

The correct answer from the choices provided is: 1 1 .

3

Final Answer

1 1

Practice Quiz

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\( \frac{2}{3}\times\frac{5}{7}= \)

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