Solve the right angle (picture provided)

B

Step-by-step explanation:

Use the Pythagorean theorem for the right triangle ABC:

By the definition,

The correct answer is option b

Step-by-step explanation:

From the figure we can see that,a right angled triangle.

ΔABC

To find side AC

AC = √(AB)² - (BC)² =√15² - 12² = √81

AC = 9

To find the trigonometric ratio

Sin A = BC/AB = 12/15 = 4/5

Cos A = AC/AB = 9/15 = 3/5

Tan A = BC/AC = 4/3

Cosec  A = 1/Sin A = 5/4

Sec A = 1/Cos A = 5/3

Cot A = 1/Tan A = 3/4

Therefore the correct answer is option b

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's