Help Please.. Can't figure it out

The answer is option 3.

Step-by-step explanation:

The area of triangle formula is A = 1/2×base×height. Then substitute the following values into the formula :

Let base = 10,

Let height = 12,

351.23

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it