The correct answer choice is 4
Answer:
3.49 radians
Step-by-step explanation:
The arc length formula is s = rФ, where r is the radius and Ф is the central angle. We know s and r and need to calculate Ф.
From s = rФ we get Ф = central angle = s/r
Here, that central angle Ф is (31.4 cm) / 9 cm = 3.49 radians
Answer:
32 pavers
Step-by-step explanation:
step 1
Find out the area of one square paver
The area of a square is
where
s is the length side of the square
we have
substitute
step 2
Find out the area of the rectangular patio
we know that
The area of a rectangle is
we have
substitute
step 3
Find out the number of pavers needed to build the patio
Divide the area of the rectangular patio by the area of one paver
56ft. Because 7 times 8 is 56.
<span>Let x= measure of sides that have common length
then from "the third side measures 5m less than twice the common length."
2x-5= third side
.
Because they gave us the perimeter we have:
11 = x+x+2x-5</span><span>11 = 4x-5
16 = 4x
4 m = x
.
third side:
2x- 5 =2(4)-5 = 8-5= 3m</span>
Length answers:
4m, 4m, and 3m
