wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Question 1 (i)
In Δ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine:
(i) sin A, cos A

Open in App
Solution

In Δ ABC, B=90

By Applying Pythagoras theorem, we get:
AC2=AB2+BC2=(24)2+72=(576+49)cm2=625cm2
AC = 25
(i) sin A=BCAC=725,
cos A=ABAC=2425

flag
Suggest Corrections
thumbs-up
3
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Trigonometric Ratios
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon