Answer:
128.57 degrees
Step-by-step explanation:
To find the measure of an interior angle of a regular polygon with sides, we can use the formula:
To find the measure of an interior angle of a polygon with 7 sides, all we have to do is plug in 7 into the formula:
7 minus 2 equals 5, so the answer is
÷
180 times 5 is equal to 900, and 900 divided by 7 is approximately 128.57
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∆ABC and ∆ADE are similar triangles.
Thus ;
So :
Inverse both sides
Multiply sides by 5
Done...
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