400/20
20m/s
..............................
2/10 because there are 10 cards and there are 5 circles and 3 triangles

Here we go ~
1. A circle can be named by their Centre, so here in the diagram it's :
2. Name 4 radii :
Radii are the line segments that joins the centre and boundary of circle.
They are :
3. 2 Major arcs :
considering two points on a circle, and joining them forms a curve ( you can say part of circumference )
When we consider two points two arcs are formed and the arc with more length is known as Major Arc
That is :
- Major arc ECF
- Major arc BEC
4. A Semicircle :
Semicircle is special arc which is formed when two arcs formed by the points are equals to one another... it's also half the Perimeter of circle.
that is :
5. 3 minor arcs :
The arc formed by two points having lesser length is known as minor arc.
that is :
6. 3 Central angles :
Central angles are angles formed by arcs on centre of the circle ~
that is :
- Angle FAB
- Angle BAC
- Angle GAB
7. A diameter :
Diameter is a chord that passes through centre of the circle.
8. Congruent Angles :
In the given figure, there are two equal/congruent angles that are ~
9. Adjacent arcs :
The arcs that have one common end point are known as Adjacent arcs ~
that are :
The answer is 22.222222%.
Answer:
240units^2
Step-by-step explanation:
The formula for area on a triangle is 1/2 x b x h, so you do 4 x 10 x 1/2, giving you 20, there are two of these triangles so you double it to 40.
Then for the rectangle below you do l x w, or 10 x 20 giving 200.
You then add it all together, 200+20+20=240 units squared.
Hope this helps!