Question

A triangle has side lengths of 34 in., 20 in., and 47 in. Classify it as acute, obtuse, or right



right
obtuse
acute

Answer 1

\[34^2 + 20^2 > 47^2 \rightarrow \text{acute}\]
\[34^2 + 20 ^2 = 47^2 \rightarrow \text{right}\]
\[34^2 + 20^2 < 47^2 \rightarrow \text{obtuse}\]

Answer 2

try...and see which is which

Answer 3

use pythagoras' theorem

47^2 = 34^2 + 20^2

if a^2 = b^2 + c^2 ... right triangle

a^2 < b^2 + c^2 ... obtuse
a^2 > b^2 + c^2 .. acute

Answer 4

ok but how will i no which 1 it is?

Answer 5

what is 34^2 + 20^2

Answer 6

try it in your calculator

Answer 7

1156+400

Answer 8

1156
400
1556

Answer 9

1556

Answer 10

right...and what's 47^2?

Answer 11

2209

Answer 12

so which is bigger 2209 or 1156?

Answer 13

2209

Answer 14

is it acute

Answer 15

so 34^2 + 20^2 < 47^2

which one is it?

Answer 16

acute

Answer 17

are you sure?

Answer 18

look at my first post again

Answer 19

?

Answer 20

look at what i wrote for 34^2 + 20^2 < 47^2

Answer 21

is it obtuse

Answer 22

yes

Answer 23

thanks

Answer 24

welcome :D