I'd go with your third option, 6.
Half the diameter (the radius, also the hypotenuse for the right triangle) is 10 units.
Half of the chord given by that blue line segment is 8 units. Now we do the Pythagorean Theorem (a² + b² = c²) to find the length of x.
x² + 8² = 10²
x² + 64 = 100
x² = 36
√x² = √36
x = 6
The answer is A.
Explanation:
Since this is a right triangle you can use The formula: leg squared plus leg squared = hypotenuse squared
So lets square the hypotenuse and first leg
And you get 85 hypotenuse and 49 leg
So just subtract 49 from 85 to get the other leg squares
You get 36 so now just square root it
Square root of 36 is 6
So the best answer is 6
Hope this helps some.
Answer:
45-(-15)
430-(-180)
11,560-(-185)
Step-by-step explanation:
just add the two numbers together for diffrence.
Answer:
20.833 feet
Step-by-step explanation:
The light reflects off the mirror at the same angle that it hits it at. So the triangle formed by the beam and mirror is similar to the triangle formed by Kevin and the mirror.
Therefore, we can write and solve a proportion.
h / 10 = 6.25 / 3
h = 20.833
The beam is 20.833 feet tall.
