Answer:
Step-by-step explanation:
The pool are is divided into 4 separated shapes: 2 circular sections and 2 isosceles triangles. Basically, to calculate the whole area, we need to find the area of each section. Due to its symmetry, both triangles are equal, and both circular sections are also the same, so it would be enough to calculate 1 circular section and 1 triangle, then multiply it by 2.
<h3>Area of each triangle:</h3>
From the figure, we know that <em>b = 20ft </em>and <em>h = 25ft. </em>So, the area would be:
<h3>Area of each circular section:</h3>
From the figure, we know that and the radius is . So, the are would be calculated with this formula:
Replacing all values:
Remember that
Therefore,
Now, the total are of the figure is:
Therefore the area of the symmetrical pool is
Answer:
149
Step-by-step explanation:
because you take 89.1 to 89 and take 60.2 to 60
then you add 60+89 to get 149
Answer:
Step-by-step explanation:
The proof of the polynomial identity shows that the left side equals the right side. To find what comes next, simplify the left side using order of operations (PEMDAS) by doing the exponent first, combing like terms and then simplifying.
simplifies to
Answer:
10
Step-by-step explanation:
im not sure if its correct but area is the area around the trapezoid and i added them
Answer:
- (Answer of part B) First of all diameter of Mars in ordinary number = 6780 km
- Now radius = Diameter/2
- = 6780/2
- = 3390
- So radius of Mars in ordinary number = 3390 km
- (Answer of part C) Mass of earth = 5.97 × 10³⁴
- Mass of mercury = 3.3 × 10²³
- Difference between the masses of Earth and Mercury = (5.97 × 10³⁴) - (3.3 × 10²³)
- = 2.67 × 10¹¹
- So, difference = 2.67 × 10¹¹
Step-by-step explanation:
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