Question

if cos theta =4/5, then the value of sin theta​

Answer 1

Answer:

sin theta = 3/5

cos theta =4/5

yherefore b=4

h=5

p2=h2-b2

p2=25-16=9

p=3

sin theta = h/p=3/5

Answer 2

Step-by-step explanation:

cos theta =4/5

cos theta = B/H

no using Pythagoras theorem ...

P²=B²+H²

P²=4²+5²

P²=16+25

P²=√41

P=6.7 (approx )

sin theta =P/H

sin theta =6.7/5

Sin theta =1.34