Question

Can someone help me and show how to write the perimeter equation to find x.

50 points. Answer part b. for full 70 points

Answer 1

a) 10x + 8 = 21

b) x = 1.3

Explanation:

The line of symmetry is a vertical line that passes through point C.

That makes sides BC and CD congruent, and sides AB and ED congruent.

perimeter = AB + BC + CD + DE + EA

perimeter = 2x + 3 + x + 1 + x + 1 + 2x + 3 + 4x = 10x + 8

perimeter = 21

a) Equation:

10x + 8 = 21

b)

10x + 8 = 21

10x = 13

x = 1.3