1. if δrst ≈ δnpq, which of the following is true?
a. ∠r = ∠p
b. ∠r = ∠q
c. ∠t = ∠p
d. ∠t = ∠q
2. given δrst ≈ δnpq, rt = 7x - 5, nq = 5x + 11, find the length of line rt and line nq.
a. 8
b. 51
c. 40
d. 56
know that i am not looking for somebody to give me the answers to these questions! if you can explain how to solve these problems, do. i'm really struggling in geometry, so any that you can give is much welcome! : ) i will be awarding brainliest answer to the person who is clearest and me to better understand this! you so much in advance! : )

Ece 202: problem set 1 due: june 14, 2019 (friday) the first 3 questions of this homework assignment covers some fundamental mathematical concepts that will play a role in this course. the remaining questions are on basic signals and laplace transforms. 1. a review of complex numbers. (a) compute the magnitude and the phase of the complex numbers −4 +j, and write them in polar form (i.e., of the form rejθ). also, plot the complex number in the complex plane. (b) simplify the complex number 1 4 − √ 1 2 − j √ 2 22 and write them in cartesian form. (c) consider the complex number s = z1z2 · · ·zm p1p2 · · · pn , where each zi is a complex number with magnitude |zi | and phase ∠zi , and each pi is a complex number with magnitude |pi | and phase ∠pi . write the magnitude and phase of s in terms of the magnitudes and phases of z1, z2, . . , zm, p1, p2, . . , pn. 2. a review of differentiation. (a) find df dx for the following functions. i. f(x) = (1−4x) 2 √ x . ii. f(x) = √ 1 + tan x. (b) find dy dx for the equation e x sin y + cos2 x cos y − x 3 = 0.