Question

In order to rescue Sela's cat, her mother propped a 19 foot long ladder against a tree at a 42° angle with the ground. How many feet above the ground was their cat? Round your answer to the nearest tenth of a foot?

1. 21.2 ft
2. 14.4
3. 12.7
4. 28.4

I NEED THE ANSWER BEFORE 9:50 PM EST TIME!!!

my choice- a

Answer 1

angle- 42º | angle- 48º
sin- 0.6691 | sin- 0.7431
cos- 0.7431 | cos 0.6691
tan- 0.9004 | tan- 1.1106

can you tell me whats it for...

Answer 2

Nice table, but you just need to understand the definition of the trig functions. In this case,

h/19 = sin 42º
h = 19*.6691 = 12.71

You should have immediately seen that your answer is wrong, because the ladder is only 19 feet long. How could it possibly reach 21 feet up the tree?