ozzypurple05
13.07.2019 •
Mathematics
What is the perimeter of the triangle shown on the coordinate plane, to the nearest tenth of a unit? 20.6 units 22.7 units 25.6 units 27.6 units
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Ответ:
we know that
the perimeter of a polygon is the sum of the length sides
in this problem we have a triangle
so
the polygon has three sides
Let
the perimeter is equal to
The formula to calculate the distance between two points is equal to
Step 1
Find the distance AB
substitutes the values in the formula
Step 2
Find the distance BC
substitutes the values in the formula
Step 3
Find the distance AC
substitutes the values in the formula
Step 4
Find the perimeter
the perimeter is equal to
substitutes the values
therefore
the answer is
Ответ:
X=-8
Step-by-step explanation:
When you switch side of the number + become - and - become +