GEOMETRY. 1.What is the length of one side of a square if the area is 400 m2 ? What is the perimeter of that square? Side Length = Perimeter = 2.In circle B, ∠=70∘ and the radius is 11cm. Find the arc length and sector area bound by that angle. Round to the nearest tenth.

126 maybe. sorry

the answer should be a. snail

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)