How do you find abs(2 +5i)|2+5i|? Precalculus Complex Numbers in Trigonometric Form Complex Number Plane 1 Answer Ratnaker Mehta Jul 19, 2016 |2+5i|=sqrt29~=5.385|2+5i|=√29≅5.385. Explanation: |x+iy|=sqrt(x^2+y^2)|x+iy|=√x2+y2. :. |2+5i|=sqrt{2^2+5^2}=sqrt(4+25)=sqrt29~=5.385. Answer link Related questions What is the complex number plane? Which vectors define the complex number plane? What is the modulus of a complex number? How do I graph the complex number 3+4i in the complex plane? How do I graph the complex number 2-3i in the complex plane? How do I graph the complex number -4+2i in the complex plane? How do I graph the number 3 in the complex number plane? How do I graph the number 4i in the complex number plane? How do I use graphing in the complex plane to add 2+4i and 5+3i? How do I use graphing in the complex plane to subtract 3+4i from -2+2i? See all questions in Complex Number Plane Impact of this question 1362 views around the world You can reuse this answer Creative Commons License