Answer:
Circle requires ≈ 20 m of edging
Step-by-step explanation:
A = πR²
R = √(A/π)
C = 2πR = 2π√(A/π)
C = 2π√(30/π) = 19.41625... ≈ 20 m
square needs ≈ 22 m of edging
equilateral triangle needs ≈ 25 m of edging
Answer: ?=Y
Explanation: The letter represents the last letter of the total. For example, 1+1+1+1= 4 (fouR), 3+3+3+3=12(twelvE), therefore 5+5+5+5=20(twentY)
Steb by step:
3x + x +20 + 32 =180°
4x +52 = 180°
-52 from both sides
4x = 128
divide both sides by 4
x = 32°
You do the square root of 10 which is 5 bc 5 x 2=10 then you have 5/7 so there fore it is a unitary circle point bc it has the same denominator as 3/7 and it goes up evenly by 2’s
