Answer:
The base is 11 cm.
Step-by-step explanation:
The formula for the area of a triangle is
. If we plug in what we know to this equation, we are left with
, which we now need to simplify.
First, we combine like terms.

Then, we can eliminate the
and
on the right side of the equation, since they cancel each other out.

Finally, we take the square root of both sides of the equation and find our answer:

What grade are you in I can try to help but this looks difficult can you try to explain it for me
Answer:
I do
Step-by-step explanation:
d
On expanded form is for example 139 in expanded form would be (100)+(30)+(9)and area model is the model for multiplication
Answer:
False
Step-by-step explanation: