Question

Express the area of this triangle as a monomial.

right triangle with variable in dimensions



A.
54x2

B.
27x2

C.
15x2


D.
1x

Answer 1

Do you know the formula for area of a general triangle, with base b and height h?

Answer 2

Bxh/2

Answer 3

I agree with that.
In this case, we are just switching base for a "6x" and height for "9x". They can be put directly into that formula.
We can simplify by multiplying the constants together and the x' s together as \(x*x = x^ 2\)

Answer 4

So it's B?

Answer 5

Yep, B looks good to me. :)

Answer 6

Thanks so much!

Answer 7

You' re welcome!