The angle between two circles x square + y square is equal to 4 and x square + y - 1 whole square is equal to 4 is
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Answer:
- given that: x²+y²=4, x²+(y-1)²=4
- so radius of first circle is R=2 and
- radius of second circle is r=2
- distance between their center d=1
- we know that angle between two circle is equal to
- cosФ=|(R²+r²-d²)/2rR|
- by putting values
- cosФ=|(4+4-1)/2(2)(2)|
- cosФ=|7/8|
- Ф=28.96°
- so angle between circle is 28.96°.
Step-by-step explanation:
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