Question

How high is the end of the ladder against the building? Round to the nearest tenth if necessary.

a
153
b
14
c
13.6
d
12
e
12.4

Answer 1

I think it might be e

Explanation:

Answer 2

h(ft) = √ (13² - 4²) = 12.4

It is a right-angled triangle and the Pythagorean theorem applies.

THEOREMA (by Pythagoras):
Given a right-angled triangle ABCABC as in the figure, then the relation is valida2 + b2 = c2a2 + b2 = c2where cc is the hypotenuse of the triangle and b, ab, a are the cathets.

h(ft) = √ (13² - 4²) = 12.4