You have to be more specific, you should add a picture of your problem that’s your struggling with
Answer:
6 
Step-by-step explanation:
Use the triangle area equation

plug in the base (4ft) times the height (3ft) then divide by two
Sorry I don’t have roller
Hope it’s right
Best luck with your studying
Answer:
-45
Step-by-step explanation:
9x5=45, and since there is a negative, you put it before 45.
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Given:
The diameter of the circle = 14 cm
To find:
The area of the circle.
Solution:
We have,
Diameter of the circle = 14 cm
We know that the radius of the circle is half of its diameter. So,


The area of a circle is:

Substituting
in the above formula, we get



Therefore, the area of the circle is 154 square cm.