Answer:
about 8 cm
Step-by-step explanation:
The formula for the area of a regular polygon is ...
A = 1/2Pa . . . . where P is the perimeter and "a" is the apothem, the distance from the center to a side
Filling in your numbers, we have ...
20 cm^2 = (1/2)P(5 cm)
Dividing by the coefficient of P, we find ...
2×(20 cm^2)/(5 cm) = P = 8 cm
The perimeter of the pentagon is about 8 cm.
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<em>Comment on the problem</em>
This calculation makes use of the area formula, as apparently intended. A regular pentagon with an apothem of about 5 cm will have an area of about 90.8 cm^2. The given geometry is impossible, as the pentagon is nearly 10 cm across. It cannot have a perimeter of only 8 cm.
Answer:
your mom
Step-by-step explanation:
The answer is for this question is D
Answer:
<em>here </em><em> </em><em>,</em>
<em>8</em><em>1</em><em>=</em><em>3</em><em>x</em>
<em>or </em><em>,</em><em> </em><em>8</em><em>1</em><em>/</em><em>3</em><em>=</em><em>x</em>
<em>or,</em><em>2</em><em>7</em><em>=</em><em>x</em>
<em>hence </em><em>,</em><em>the </em><em>value </em><em>of </em><em>x=</em><em>2</em><em>7</em>
Answer:
Use the slope formula.
Step-by-step explanation:
1. The slope formula is in the form of y2-y1/x2-x1.
2. Use one set of points as (x1, y1), and the other as (x2, y2).
3. Plug the points into the corresponding values of the slope formula.
4. Solve.
5. Your answer is -2/11.
