Question

The stage is a right triangle with sides of a = 10 and b = 20 feet. How long is the other side if it is side c in this formula? (Use a^{2}+b ^{2}=c ^{2} and round your solution to the nearest tenth.)
A. 25.6 ft
B. 30.0 ft
C. 22.4 ft
D. 10 ft

Answer 1

\[a^{2}+b ^{2}=c ^{2}\]

Answer 2

@jim_thompson5910

Answer 3

\[\large a^{2}+b^{2}=c^{2}\]

\[\large 10^{2}+20^{2}=c^{2}\]

\[\large 100+400=c^{2}\]

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\[\large c = ??\]

Answer 4

\[500^{2}\]

Answer 5

\[\large 100+400=c^{2}\]

\[\large 500=c^{2}\]

\[\large c^{2} = 500\]

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\[\large c = ??\]

Answer 6

i dont understand what do we do ?

Answer 7

example

if c^2 = 36, then c = 6 since 6^2 = 36

Answer 8

so if c^2 = 500, then c = ???

Answer 9

25.6?

Answer 10

take the square root of both sides

Answer 11

thats the closest isnt it ?

Answer 12

well 22.4

Answer 13

22.4 is much closer