3 years ago

Find the number of sides of a regular polygon with each interior angle equal to 157.5°. The regular polygon has sides.

1 answer:

7 0

The interior angle plus the exterior angle totals to 180 so you would take 180 and subtract 157.5 and get 22.5
next you would take 360 for the total of degrees that he external angles totals up to.
so 360 divided by 22.5 equals the number of sides you shape has and that would be 16 sides.

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Please help! The expressions 3x - 9 and 23 - 5x represent the lengths (in feet) of two sides of an equilateral triangle. Find th

valentina_108 [34]

An equilateral triangle has 3 congruent sides so the 2 expressions above are equal
3x - 9= 23 - 5x
And then you solve for x
-22=-2x
X=11

5 0

2 years ago

2. What is 95% of 720?

jek_recluse [69]

Answer: 684

Step-by-step explanation:

95% of 720

Move decimal point two places to the right.