HELP ME PLEASE :(

What is the volume of the triangular prism? Round to the nearest tenth.

A triangular prism. The triangular base has a base of 12 inches and height of 10.4 inches. The height of the prism is 19 inches.
A.118.6 inches cubed
B.748.8 inches cubed
C.1,085.6 inches cubed
D.1,185.6 inches cubed

Correct option D) 1,185.6 inches cubed .

Step-by-step explanation:

Here we have , A triangular prism. The triangular base has a base of 12 inches and height of 10.4 inches. The height of the prism is 19 inches. We need to find  the volume of the triangular prism .Let's find out:

We have following parameters :

We know that , Volume of triangular prism is :

⇒

⇒

⇒

⇒

Therefore , Correct option D) 1,185.6 inches cubed .

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign