Question

A-b-c a= -5,7; b=2,5; c= -9,6.

Answer 1

-5.7-2.5+9.6=1.4
...............................

Answer 2

Сам или сама думай это легко

Answer 3

To find the lengths of the sides of triangle ABC, we can use the distance formula, which calculates the distance between two points in a coordinate plane.

The distance formula is given by:

d = √((x2 - x1)^2 + (y2 - y1)^2)

Let's calculate the lengths of the sides AB, BC, and AC.

Side AB: A = (-5, 7) B = (2, 5)

dAB = √((2 - (-5))^2 + (5 - 7)^2) = √(7^2 + (-2)^2) = √(49 + 4) = √53

Side BC: B = (2, 5) C = (-9, 6)

dBC = √((-9 - 2)^2 + (6 - 5)^2) = √((-11)^2 + 1^2) = √(121 + 1) = √122

Side AC: A = (-5, 7) C = (-9, 6)

dAC = √((-9 - (-5))^2 + (6 - 7)^2) = √((-4)^2 + (-1)^2) = √(16 + 1) = √17

Therefore, the lengths of the sides of triangle ABC are:

AB ≈ √53 BC ≈ √122 AC ≈ √17