Yooo this trippy help
1 answer:
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Answer:
To find the sum of interior angles in a polygon, we can use the formula:
where n is the number of sides.
Since this is pentagon (5 sides), then
The missing angle would then be
Since angles on a straight line add up to 180, then
Answer:
XY = 18
Step-by-step explanation:
The figures are similar so the ratios of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
10 XY = 180 ( divide both sides by 10 )
XY = 18