Area=bh/2
A=100*180/2=9000mi^2
1323459/9000=147 persons/mi^2
Well, first let's identify which answers are incorrect, then it will be easier to figure out which are correct.
A. Equilateral: An equilateral triangle is a triangle with 3 equal sides. Since there are 180 degrees in a triangle, an equilateral triangle would have three sides of 60 degrees, and none of 45 degrees. Answer? Incorrect.
B. Isosceles: An isosceles triangle has two sides that are equal. 45 and 45 are equal, therefore, this answer is: Correct!
C. Scalene: A scalene triangle has three unequal sides, therefore, this answer is incorrect.
D. Obtuse: An obtuse triangle has one angle that is more than 90 degrees, therefore, since 45 and 45 equal 90 already, this answer is: incorrect.
E. Right: A right triangle has one right angle (angle that equals 90 degrees) since 45 + 45 = 90, and 90 + 90 = 180, this answer is: Correct!
F. Equiangular: This last choice is practically the same as the first, therefore the answer is: incorrect.
The two correct answers are: B Isosceles, and E Right!
Answer:
5.19
Explanation:
The first place value after the decimal point is called the tenths place. The second place value after the decimal point is called the hundredths place.
To round, remember that you take the place value after the one that it is asking for and numbers 5 and up round up, numbers 4 and below round down.
Hope this helps :)
Answer:
4
Step-by-step explanation:
pi*r^2
just put each number where r is to find out the answer
