50
in δjkl, the measure of ∠l=90°, jl = 16, lk = 63, and kj = 65. what is the value of the cosine of ∠j to the nearest hundredth?

(d) triangle cde

step-by-step explanation:

given: δead with ∠ead=90°

to find: a triangle which is similar to   δead.

solution: from δead and δcde, we have

∠ead=∠cde (each90°)

∠ced=∠dea (reflexive)

thus, by aa similarity, triangle ead is similar to triangle cde.

therefore, cde is the only triangle which is similar to triangle ead.

hence, option d is correct.