4 is a rational number because it can be expressed as the quotient of two integers: 4÷ 1
36 is the length of altitude of equilateral triangle below
If a polygon is regular, it has congruent sides and congruent angles. We know that an octagon has 8 sides and a perimeter of 80cm. Because the sides of the octagon are congruent, we can divide 80 by 8 to get <u>10 centimeters for one side. </u> Hope this helps!! :)
Answer:
113.04 square inches
Step-by-step explanation:
The diameter of the circle is 12 inches, so the radius is (1/2) * 12 = 6 inches. The area of this circle is approximately 3.14(6^2) = 3.14 * 36 = 113.04 square inches.