Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x -
4) feet, (x2 - 1) feet, and (2%? - 15) feet. What is the perimeter of the triangle if x 4?
16 feet
40 feet
76 feet
80 feet

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)

your answer is  

a.

5

step-by-step explanation:

the answer is c. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀