The area of a square is 4x2 + 20xy + 25y2. find the perimeter.

Step-by-step explanation:

1)The area of a square is 4x^2 + 20xy + 25y^2 =

4x^2+10xy+10xy+25y^2=2x(2x+5y)+5y(2x+5y)=(2x+5y)(2x+5y)=(2x+5y)^2

2)Perimeter of square= 4a (a is a side of square)

P= 4(2x+5y)=8x+20y

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm