Whats 2.638 rounded to the nearest hundredth?
1 answer:
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Answer: 26.8 feet
Step-by-step explanation:
In the figure attached you can see two right triangles triangle ABD and a triangle ACD.
You are located at point B and the other person at point C.
The approximate height of the lifeguard station is <em>x</em>.
Keep on mind that:
Therefore:
<em>For the triangle ABD</em>:
[EQUATION 1]
<em>For the triangle ACD:</em>
[EQUATION 2]
Solve from DC from [EQUATION 2]:
Substitute into [EQUATION 1] and solve for x:
≈26.8ft
Answer:
9 in²
Step-by-step explanation:
The area (A) of an equilateral triangle is calculated as
A = ( s is the length of a side )
Here s = 6, thus
A = =
= 9
in²