Question

find the value of sec thita..​

Answer 1

To find the value of sec thetha...

first we have to find largest side of left triangle

let unknown side of triangle be - hypotenuse = 'x'

we know that in an right angle triangle :

[hypotenuse sq = side sq. + side sq]

xsq. = 16sq. x 12 sq. [ sq means square ]

x^2 = 256 + 144

x = √400

therefore X = 20

..we know that sec thetha = hypotenuse/ adjacent side

sec thetha = 20/16

therefore sec thetha = 5/4