Find x (4+25) (6x+20) (3x+25)

Mathematics

2 answers:

katen-ka-za [31]1 year ago

8 0

Answer:

x=15º

Step-by-step explanation:

Sum of quadrilateral interior angles;

(4x + 25) + (3x + 25) + (6x + 20) + 180-(4x + 25)=360

3x + 25 + 6x + 20 + 180 =360

9x = 360 - 225

9x = 135

x = 15º

ASHA 777 [7]1 year ago

4 0

Answer:

x = 15

Step-by-step explanation:

the opposite angle of a cyclic quadrilateral sum to 180° , then

6x + 20 + 3x + 25 = 180

9x + 45 = 180 ( subtract 45 from both sides )

9x = 135 ( divide both sides by 9 )

x = 15

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