D
a number times itself don't equals 184
11×11= 121
12×12=144
13×13=169
Answer\
X is 84 ;)
Step-by-step explanation:
We know that
<span>the isosceles triangle has two equal sides
</span>
<span>let's analyze two cases
</span>
first case
perimeter=22 cm
<span>let's suppose that the known side of 6 cm is one of the two equal sides
</span>perimeter=6+6+x
22=6+6+x-----> x=22-12----> x=10 cm
answer first case
<span>the possible lengths of the other two sides are
</span>6 cm
10 cm
second case
let's suppose that the known side of 6 cm is the side that is not equal
perimeter=22 cm
perimeter=6+x+x
22=6+x+x----> 2x=22-6----> 2x=16-----> x=8 cm
answer second case
the possible lengths of the other two sides are
8 cm
8 cm
3 less then x.......x - 3
is equal to 13...= 13
x - 3 = 13 <==
The answer is -19 because I asked my math teacher and she said-19
