The surface area of which composite figure is the sum of the areas of eight triangular faces?
2 answers:
Answer:
Option B. is the answer.
Step-by-step explanation:
As you can see from the figure attached, Rectangular pyramid has five faces. Four triangular and one rectangular face.
In this question we have to find the a composite figure which has eight triangular faces.
Therefore, by adding two rectangular pyramids by common rectangular base we can get the composite figure with eight triangular faces.
Option B. will be the answer.
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Answer:
The population of this city in 13 years is 440,550.
Step-by-step explanation:
Given:
Suppose a city with population 300, 000 has been growing at a rate of 3% per year.
Now, to find the population of this city in 13 years.
Let the population of this city in 13 years be
Population () = 300,000.
Rate per year () = 3%.
Time () = 13 years.
Now, we put formula to get the population of the city in 13 years:
Therefore, the population of this city in 13 years is 440,550.