One angle of an octagon is 65º. Theothers are equal to each other. Find them.
2 answers:
Answer:
42 1/7 degrees
Step-by-step explanation:
65+7x=360
7x=295
x=42 1/7
<em>x = 145°</em>
- Step-by-step explanation:
<em> the sum of interior angles of octagon formula</em>
<em>S = (n - 2)×180°</em>
<em>n = 8</em>
<em>S = (8 - 2)×180°</em>
<em>S = 6×180°</em>
<em>S = 1080°</em>
<em>we have 1 angle = 65° & others are equal to each other</em>
<em>1080° - 65° = 7x</em>
<em>7x = 1015°</em>
<em>x = 1015° : 7</em>
<em>x = 145°</em>
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