All Triangles are equal to 180° on a plane surface no triangle is equal to 180° on a curved surface.
Answer:
80
Step-by-step explanation:
DAB =DAC...........
He just switched sides of the variables and numbers. Instead if adding the opposite.
The answer is the second choice, or B; 240 ft^2.
You have to find the area of all four triangles and just add those all together.
Two of the triangles have an area of
5*16=80
Multiply that by two
80*2=160
The other two smaller triangles have an area of
8*5=40
Multiply that by 2 also
40*2=80
Add 160+80 and the answer is 240.
