Ineed with exercises 3,4, and 6 show all work and don’t answer number 5 just tell me if it is correct

*If you need me to do #5, DM me!

3. The area of a triangle can be given by (just plug and chug as always):

The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):


Now we just add them:


So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:

So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:

Multiply by 4 to get total area:


So, the area of the given rhombus is 25cm².

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

10,000 hope i ! : )