a house with an original value of $210,000 increased in value to $300,000 in 5 years what is the ratio of the increase in value to the original value of the house ?

6%per year

Step-by-step explanation:

210000/300000=.7

it increased by 30%

30/5=6%per year

Take the segment between the first two vertices to be the base of the triangle.  

The length of the base is then 8 - 1 = 7.  

The height of the triangle is then 6-2 = 4.  

The area of the triangle is thus 7*4/2 = 14.  

Hope that helps!