Question

Using the right trangle below find the secant of angle A

Answer 1

sec(a) = 2

Explanation:

Secant = 1/cos(x)

cos(A) = adjacent A/Hypotenuse

1/cos(a) = hypotenuse/Adjacent A

sec(a)=
`(2√(5) )/(√(5) )`=2

Answer 2

Answer: secant 2: option A

Step-by-step explanation:

Secant =1/cosx

Since cosx= adjacent /hypotenuse

1/ adjacent /hypotenuse

1*hypotenuse/adjacent

Secant= hypotenuse /adjacent

Secant=2√5/√5

multiply both numerator and denominator by √5

Secant =2√5*√5/√5*√5

Secant =2√25/√25

√25=5

2*5/5

Secant=2