Darren cut along a diagonal line across a sheet of paper to make a triangle. The paper was 10 inches long and 8 inches wide. What is the area of the triangle he created?

Step-by-step explanation:

The initial dimensions of the paper are:

(length)

(width)

After the paper is cut along the diagonal, we remain with a right triangle, of which the length and the width corresponds to the base and the height.

For a triangle, the area is calculated as

where

b is the base

h is the height

Here we have:

Therefore, the area of the triangle is:

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3