90 square ft (try and look at it like each side is a 2d rectangle, find the areas of the sides and then add them up.)
Answer: 15cm^2
Step-by-step explanation:
0.5*10*3=15
This is the concept of geometry, we are required to find the values of angle a,b,c,d;
Given that the triangles are by line intersecting two parallel lines, therefore we can conclude that both triangles are similar;
thus;
angle b=40° ⇒alternate angles
angle b= angle c=40° ⇒base angles of isosceles triangles are equal;
angle d=180-(40+40)=180-80=100°
angle a=360-80=240°
I think it is hexagon. It says which polygon at the bottom, and hexagons have six sides like the figure above.
If you multiply 11 by 15 which is 165 you will get your answer 165$
