A. heads
A jellyfish has no ears or eyes or nose and no brain or heart. They do not even have a head as their body is almost totally made of water and is soft having no bones at all.
Answer:There were 174 blue pens to start with. Hope this helps!
<h2>
Area of Composite Shapes</h2>
To find the area of composite shapes, we can break the bigger shape down into small, simpler shapes, and find the sum of their areas.
For this triangle, we will need to know the formula to find the area of a triangle:

<h2>Solving the Question</h2>
The given shape can be seen as one large triangle with a little triangle cut out of it. To find the shaded region, we can:
- Find the area of the large triangle
- Find the area of the little triangle
- Subtract the area of the little triangle from the large triangle
<h3>Area of the Large Triangle</h3>

⇒ Plug in the values given for the base and height:

<h3>Area of the Small Triangle</h3>

⇒ Plug in the values given for the base and height:

<h3>Subtract the Area of the Small Triangle from the Area of the Large Triangle</h3>

<h2>Answer</h2>
The area of the shaded region is
.