Which expressions are equivalent to 56x+ 24 divided by 8? Drag each expression into the table to show whether it is equivalent o
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The diameter of the tank = 9 feet
So radius is = feet
Height of the tank = 25 feet
The top of the tank must be circular with same radius as 4.5 feet
So, to calculate the area of the tank and top, we will add the curved or lateral surface area of tank and area of circle
Curved or lateral Surface area of cylindrical area = 2*PI*r*h
= = 706.50 square feet
And area of the circular top = PI*r²
= = 63.585 square feet
So, total area that will be painted = = 770.085 square feet
Or rounding up to 2 decimal places = 770.09 square feet.
For it to be a right triangle, it must have a right angle.
Right angles are formed by perpendicuar lines.
If we find that two of these lines are perpendicular, we will know it is a rt. triangle.
Perpendicular lines have slopes which are opposite reciprocals (like 3 and -1/3)
To find the slope between two points, use the formula
.
For line AB:
For line AC:
For line BC:
-2 and 1/2 are opposite reciprocals, so this must be a right triangle.
<em>
</em><em>Another way to do this would be to use the distance formula to find the three side lengths and see if the Pythagorean Theorem applies.</em>
Right angles are formed by perpendicuar lines.
If we find that two of these lines are perpendicular, we will know it is a rt. triangle.
Perpendicular lines have slopes which are opposite reciprocals (like 3 and -1/3)
To find the slope between two points, use the formula
For line AB:
For line AC:
For line BC:
-2 and 1/2 are opposite reciprocals, so this must be a right triangle.
<em>
</em><em>Another way to do this would be to use the distance formula to find the three side lengths and see if the Pythagorean Theorem applies.</em>