Answer:


Step-by-step explanation:
a. Area is calculated by summing the areas of the prism's individual surfaces.
#First, calculate the areas of the right-angled surfaces:

#We then find the areas of the rectangular surfaces:

#We sum the areas to find the total surface areas:

Hence, the prism's surface area is 
b.Area is calculated by summing the areas of the prism's individual surfaces.
#First, calculate the areas of the right-angled surfaces:

#We then find the areas of the rectangular surfaces:

#We sum the areas to find the total surface areas:

Hence, the prism's surface area is 
23 plus seven is 30 and then you add the 15 which equals 45
Is there a picture of the clock?
<span>The graph of a degenerate circle is a point
Which mean :
A point is a degenerate circle (circle equation with zero radius)
for example: ⇒⇒ (x - 2)² + (y - 3)² = 0
</span>
The answer is 1/2. 1/5 is equal to 2/10, and 2/10 + 3/10 = 5/10. 5/10 is equal to 1/2 in simpelst form.