The Number System Unit Test

Math 8 Q1 (Pre-Algebra) / The Number System

The height of an equilateral triangle equals 3√2 times the side length. Using 7/4 for the square root of 3, what is the approximate height in meters of an equilateral triangle with a side length of 8 meters?(1 point)

3 answers

To find the height of the equilateral triangle, we can use the formula:

height = side length * 3√2

Given that the side length is 8 meters, we can substitute this value into the formula:

height = 8 meters * 3√2

Since we are given that the square root of 3 is equal to 7/4, we can substitute this value as well:

height = 8 meters * 3 * (7/4)

Now we can simplify the expression:

height = 24 * (7/4) meters

height = 168/4 meters

height = 42 meters

Therefore, the approximate height of the equilateral triangle is 42 meters.
is it 42 or 4/2
Apologies for the mistake. It should be 4/2. Let me correct the calculation.

We're given that the height of an equilateral triangle is equal to 3√2 times the side length.

Given the side length is 8 meters, we can calculate the height as follows:

height = 8 meters * 3√2

Since the square root of 3 is given as 7/4, we substitute this value:

height = 8 meters * 3 * (7/4)

Now we can simplify the expression:

height = 24 * (7/4) meters

height = (24 * 7) / 4 meters

height = 168 / 4 meters

height = 42 meters

Therefore, the approximate height of the equilateral triangle is 42 meters.