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Post-Qu
Volume of Pyramids and Cones - Item 2520
Two cones have a radius of 2 cm. The height of one cone is 8 cm. The other cone is
that height. Which of these statements is NOT true?

step-by-step explanation:

12475909

thats not a system of equations, that is a solution

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)