Based on the fact that this is an equilateral triangle, the value of y can be found to be 5.
What is the value of y?
The figure given is an equilateral triangle which means that the lengths of all the sides are equal.
As DC is equal to 20, it means that all the other sides should be 20 as well.
This means that the value of y is:
20 = 15 + y
y = 20 - 15
y = 5
In conclusion, y is 5.
Find out more on equilateral triangles at https://brainly.com/question/17264112
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