Question

3.The diagonals of an isosceles trapezoid BC,AC are labeled 5x and 3x + 40. Find the length of the diagonals.

Answer 1

so it's AC and BD are the diagnols...

Answer 2

since this is an isosceles trapezoid, the diagnols should be equal.
set 5x = 3x+40 and solve for x.
to find the length of the diagnols, stick it back into 5x or 3x+40

Answer 3

HOW DO I SLOVE FOR X

Answer 4

subtract 3x from both sides of the equal sign.