Answer:
Step-by-step explanation:
we know that
An equilateral triangle has three equal sides and three equal interior angles (the measure of each interior angle is equal to 60 degrees)
see the attached figure to better understand tyhe problem
Let
h ----> the height of an equilateral triangle
b ---> the length side of an equilateral triangle
In the right triangle ABD
Applying the Pythagorean Theorem

substitute the given values

square root both sides
Answer:
volume = length×width×height
Step-by-step explanation:
box 1
12×2×7 = 24×7 =168
box 2
9×2×5 = 10×9 = 90
total vloume = 168+90 = 258cubic inches.
There were (10500/1.25) = 8400 visitors in 2001.
Explanation:
An increase of 25% means multiplying by 1.25. So, if the visitors from 2001 are multiplied by 1.25, then the result is 10500. Thus, the amount from 2001 was 10500/1.25=8400
Answer:
28.26 square inches
Step-by-step explanation:
Formula for area of a circle:

Radius is 3.

Use 3.14 for pi:

The area should be 28.26 square inches.
Answer:
Zero Property.
Step-by-step explanation:
The Zero property states that in an equation of:
ab = 0
Either a or b, or both, must be zero to obtain a result of 0.
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