Question

Nick has a small triangular shaped lawn. What could be the lengths of the three sides of the lawn?

20m, 30m, 55m

30m, 40m, 75m

20m, 30m, 40m

30m, 40m, 70m

Answer 1

apply this rule:
a+ b > c
a + c > b
b + c > a

let's look at A.
20 + 30 > 55?
50 is not greater than 55 so that cant be the answer..

look at B.
30 + 40 > 75?
70 is not greater than 75 so that's not the answer either

Answer 2

do you get where im going?

Answer 3

yes, at first i was just trying to do a sq. + b sq. + c sq.. but doesnt that just work with right triangles

Answer 4

ah, its the last one right because 40 and 30 equal 70

Answer 5

nope..like i said it should be greater than