Answer:
<h2><em><u>
15.71 is the perimeter.</u></em></h2>
Step-by-step explanation:
Perimeter = Circumference
<em><u>Step 1. Know and recognize what you have</u></em>
C = pi*d
pi = 3.142
d = 10
<em><u>Step 2. Solve for the circumference of whole circle</u></em>
C = 3.142*10
C = 31.42
<em><u>Step 3. Solve for the questions answer</u></em>
C of semicircle = 31.42/2
<h2><em><u>
C of semicircle = 15.71</u></em></h2><h2><em><u>
</u></em></h2>
Hope this helped,
Kavitha
Answer:
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Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Since the perimeters are equal, then equate the perimeter expressions, that is
4(x - 2) = 6(
x + 5) ← distribute parenthesis on both sides
4x - 8 = 3x + 30 ( subtract 3x from both sides )
x - 8 = 30 ( add 8 to both sides )
x = 38
Substitute x = 38 into either of the 2 perimeter expressions
perimeter = 4(x - 2) = 4(38 - 2) = 4 × 36 = 144 in → c
After the long math I did, I got 12.
Answer: 1800 x 0.21 = 378
