A circle has a diameter of 4 inches. Which statement about the area and circumference of the circle is true?
2 answers:
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Answer:
Fraction of fire trucks =
Total number of toy cars =
Step-by-step explanation:
Fraction of sports car =
Fraction of remaining cars
So,
Fraction of pick up cars =
Therefore,
Fraction of fire trucks =
That is Number of fire trucks = ( Total number of toy cars )
Number of fire trucks = 4
Total number of toy cars =
We are given
△ABC, m∠A=60° m∠C=45°, AB=8
Firstly, we will find all angles and sides
Calculation of angle B:
we know that sum of all angles is 180
m∠A+ m∠B+m∠C=180
we can plug values
60°+ m∠B+45°=180
m∠B=75°
Calculation of BC:
we can use law of sines
now, we can plug values
Calculation of AC:
now, we can plug values
Perimeter:
we can plug values
Area:
we can use formula
now, we can plug values
...............Answer