Let

using a graph tool
see the attached figure
The figure is a triangle
we know that
<u>The Heron's Formula</u> is a method for calculating the area of a triangle when you know the lengths of all three sides.
Hero's Formula is equal to

where
p is is half the perimeter of the triangle
a,b,c are the lengths of the sides of a triangle
so
Step 
<u>Find the length sides of the triangle</u>
a) <u>Find the distance AB</u>

Substitute


b) <u>Find the distance AC</u>

Substitute


c) <u>Find the distance BC</u>

Substitute


Step
<u>Find the perimeter of the triangle</u>

<u>Find the half of the perimeter </u>

Step 
<u>Find the area of the triangle</u>



therefore
<u>the answer is the option </u>
a) 1.65 mi^2.
3)
GCF of 18 and 22 is 2
GCF of 25 and 50 is 25
GCF of 54 and 36 is 18
GCF of 40 and 8 is 8
GCF of 16 and 24 is 8
4)
GCF of 10 and 15 is 5
GCF of 24 and 30 is 6
GCF of 8 and 10 is 2
GCF of 5 and 24 is 1
GCF of 24 and 40 is 8
5)
GCF of 8 and 12 is 4
GCF of 15 and 4 is 1
GCF of 20 and 4 is 4
GCF of 3 and 24 is 3
GCF of 12 and 4 is 4
6)
GCF of 15 and 2 is 1
GCF of 12 and 30 is 6
GCF of 4 and 30 is 2
GCF of 6 and 40 is 2
GCF of 10 and 2 is 2
Answer:
123 456 789 10 11 12 1 3 1 4 1 5 1 5
Step-by-step explanation:
A.)44
The total number will equal 180. All right angles are 90. 180-90-46 equal 44