Answer:
Step-by-step explanation:
I assume that the three points given are the vertices of the triangle. So the three points are:
A (-4,1)
B (-7,5)
C (0,1)
The area of a triangle is given by:
where b is the base and h is the height.
Here we can take as follows:
- We can take the base to be the side AC, so that its length is equal to the distance between the two points:
- The height of the triangle is therefore the perpendicular distance between AC and point B. This is equivalent the difference in the x-coordinate between any point on AC and B, so:
Therefore, the area of the triangle is:
The answer is 5. Work backwards: first add 7 to 9, then divide by 2, then subtract 3.
9+7=16
16/2=8
8-3=5
Cross Check:
5+3=8
8*2=16
16-7=9
Final Answer: 5
Answer:
I think humans live in these places.
Step-by-step explanation:
I think humans live in these places because they are man-made structures made for civilizations, for example the houses and roads.
Answer:
78.57
Step-by-step explanation:
Radius is 5 feet
Area of circle is pi*r Squared
22/7*5*5
78.57 square feet
45 is exactly half of 90
that means 45 is 50% of 90.