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Ghella [55]
3 years ago
12

in an isosceles triangle,the vertex angle is twice either base angle.(let the base angle be x in degrees.remember that the sum o

f anglesof a triangle is 180 degrees). Set up an equation​
Mathematics
1 answer:
Alona [7]3 years ago
4 0
ImageMeritnation › question › math
In an isosceles triangle, the vertex angle is twice either base angle (Let the base angle be b in ...
Mar 27, 2015 · (Let the base angle be b in degrees. Remember that the sum of angles of a triangle is 180 degrees). Set up an equation. a. x + 2x = 180 b. x + 2x
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Answer:

4

Step-by-step explanation:

Simplify x and y by rationalising the denominator of both

To rationalise the denominator multiply the numerator/ denominator by the conjugate of the denominator.

The conjugate of 2 + \sqrt{3} is 2 - \sqrt{3}

The conjugate of 2 - \sqrt{3} is 2 + \sqrt{3}

x = \frac{1(2-\sqrt{3)} }{(2+\sqrt{3})(2-\sqrt{3})  } = \frac{2-\sqrt{3} }{4-3} = 2 - \sqrt{3}

y = \frac{1(2+\sqrt{3}) }{(2-\sqrt{3})(2+\sqrt{3})  } = \frac{2+\sqrt{3} }{4-3} = 2 + \sqrt{3}

Thus

x + y = 2 - \sqrt{3} + 2 + \sqrt{3} = 4

5 0
3 years ago
Can someone help walk me through this?
lys-0071 [83]

Answer:oh ok so imma message you hope someone else will help you

Step-by-step explanation:

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