PLEASE HELP!!!! For what value of x is the figure a rhombus? x=18 x=17.18 x=9 x=7.8

asked Jan 7, 2019 213k views

4 votes

PLEASE HELP!!!!

For what value of x is the figure a rhombus?

x=18
x=17.18
x=9
x=7.8

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1 vote

Answer: x=9

Explanation:

Saltern answered Jan 8, 2019

7.8k points

4 votes

a triangle makes up 180 degrees
8x-24+3x+15+90=180
8x-24+3x+15=90
11x-9=90
11x=99
x=9

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