Find the value of x. A) 55 B) 60 C) 70 D) 125

Mathematics

1 answer:

Anna11 [10]4 years ago

6 0

Answer:

x = 70°

Step-by-step explanation:

The given triangle has 2 equal sides and is therefore isosceles.

The base angles are equal, both 55°

To find x subtract the sum of the 2 angles from 180

x = 180° - (55 + 55)° = 180° - 110° = 70°

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Now we calculate the gradient of the pairs given to us by substituting the x and y values.

RS = $\frac{2-5}{8-(-1) }$
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Hope this helped! Feel free to ask me if there's any part of the working you don't understand :)

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