Question

in triangle ABC ,AB=3 and AC=9. find m angle B to the nearest degree.
a. 72
b. 52
c. 18
d. 58

Answer 1

well do you know how to find BC?

Answer 2

no

Answer 3

use Pythagorean theorem

Answer 4

AB^2 + AC^2 = BC^2

Answer 5

i tried. it want be write

Answer 6

right*

Answer 7

well 3^2 + 9^2 = 9 + 81 = 90
sqr 90 is about 9.48