Hey there!

Formula for the area of a triangle is (1/2)bh.
Base of this triangle is 5, height is 4.
Image attached.
Plug values into the formula:
A = (1/2)(5)(4)
Simplify.
A = (1/2)(20)
A = 10
Area of the triangle is 10 units².
Hope this helps!
Answer:
mate your question is incomplete..
post full question so that I can help u..
Have a NYC day
Circumference is 56.54866776 and Area is 254.4690049