About area and perimeter

I know how to find perimeter pretty easily and I normally get these all right. I find finding the area of a triangle harder, but I still know how (base x height divided by 2) . I find finding the area of a parallelogram easier because it's only base x height .
Tootaloo!

How to find the area of a triangle

Hi, to find the area of a triangle you have to messure the base and height. Then you have to multiply the height and base example 6x4=24. Then you divide the answer by 2 example 24 divided by 2=12. Thats the answer and the how you find the area of a triangle

Journal Entery

In mm the ? is 69mm and for cm it is 6.9mm. I think it is easy to figure out that permineter using addition.

Page.277 journal entry

What have you learned about finding the perimeters of polygons?

I learned that you dont have to messure each side of the polygon.