What is the area of a triangle whose vertices are j(−2, 1) , k(4, 3) , and l(−2, −5) ? enter your answer in the box.

we know that

The Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides. The formula is equal to

where

a,b,c -----> are the lengths of the sides of a triangle

p ----> is half the perimeter

we have

The formula to calculate the distance between two points is equal to

Step 1

Find the distance JK

Substitute the values in the formula of distance

Step 2

Find the distance KL

Substitute the values in the formula of distance

Step 3

Find the distance JL

Substitute the values in the formula of distance

Step 4

Find the perimeter of the triangle

we know that

the perimeter of a triangle is the sum of the length sides of the triangle

so

substitute the values

Find half the perimeter

Step 5

Find the area of the triangle

Applying the Heron's Formula

we have

substitute the values

therefore

the answer is

The area of the triangle is

all but the second one

step-by-step explanation:

cuz that one goes over 180

mark brainliest

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!