Answer:
4pi
Step-by-step explanation:
Circle circumference = 2*pi*r
2*pi*2
4*pi
Answer:
The lines are congruent, the figure is a parallelogram.
Answer:
2π/3 I believe !
Step-by-step explanation:
Answer:
5 and 61
Step-by-step explanation:
Using Pythagoras' identity in the right triangles
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
(1)
c² = a² + b² = 3² + 4² = 9 + 16 = 25 ( take the square root of both sides )
c =
= 5
(2)
c² = a² + b² = 11² + 60² = 121 + 3600 = 3721 ( take the square root of both sides)
c =
= 61
Answer:
340 ft²
Step-by-step explanation:
perimeter of rectangle = 2 x (L+W) = 2L + 2W = 74 .....(1)
cost of two length : $1 x 2L
cost of two width: $3.50 x 2W
($1 x 2L) + ($3.50 x 2W) = $159
2L + 7W = 159 ....... (2)
(2) - (1) ... 5W = 85
W = 17
L = (74 - 2 x 17) / 2 = 20
dimension = 17 x 20 = 340 ft²