Question

The Pythagorean Theorem can be used to find the missing side length of a triangle when two other side lengths are known.

Consider the following measurements.
A=20
B=?
C=29
Use the formula c=√a^2+b^2 a modified version of the Pythagorean Theorem, to find the missing side length, b.
What is the value of b?

(NOT C)
A. 21
B. 35.2
C. 441 XXX
D. 840.8

Answer 1

The value of b is 21

Explanation:

29=√20^2+b^2

or, 29=√400+b^2

or, 841=400+b^2

or, 841-400=b^2

or, √441=b

b=21