alleryA right triangle has adjacent side 8 and hypotenuse 10. Find cos A.
A5/4
B3/4
C4/5
D3/5
Answer & Solution
Correct answer: C. 4/5
Cosine is adjacent over hypotenuse, so 8/10 = 4/5.
Keep practising Trigonometry
Browse all Trigonometry questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
An equation true for all values of the variables involved is called an:In the word trigonometry, the Greek root 'tri' means:Tap every prime numberIf the sum of the first $n$ terms of an AP is $S_n=4n-n^2$, what is the $n$th term of the Fill the gaps on coordinate geometryMatch each average to its meaningIf the two lines represented by a pair of linear equations intersect at a single point, thIn an equation written as y = 3 x - 6, the dependent variable is