Question

A triangle has sides of lengths 5 cm, 5 cm, and square root 47cm.
Which of the following statements is true?


A. The triangle is an obtuse triangle because (√47)^2>5^2+5^2

B.
The triangle is an acute triangle because 5^2<5^2+(√47)^2

C.
The triangle is an acute triangle because (√47)^2<5^2+5^2

D.
The triangle is a right triangle because it has two sides of equal length.

My answer for this Q is A :D

Answer 1

so, you're saying that 47 > 50 ?

Answer 2

wait so 47 dosent change?
Sorry to ask ^^;

Answer 3

by definition, (√47)^2 = 47

just as √2 * √2 = 2

(√x)^2 = x
That is the definition of the square root of x: the number which, when squared, produces x.

Answer 4

oh ok, i also have another Q sorry ^^;
do you have to find the same thing that equals to the Q?