Answer:
The length around the figure in terms of r is 2r ( + 4).
Step-by-step explanation:
The perimeter of an object is the total length of the boundary of the object.
The figure consists two similar semicircle and a rectangle.
Adding the two semicircles, a complete circle is formed. The circumference of a circle = 2r.
The rectangle has a length which is twice its height.
i.e l = 2h
But,
r = (the diameters of the semicircles equal the height of the rectangle)
⇒ h = 2r
Thus, one side length of rectangle = 2 × 2r (l = 2 × h)
= 4r
The length around the figure in terms of r is:
= 2r + 4r + 4r
= 2r + 8r
= 2r ( + 4)
The length around the figure in terms of r is 2r ( + 4).
The ratio of the perimeter of the smaller polygon to the larger is 1/3.
<h3>
Similar figures</h3>
Two figures are said to be similar of they have the same shape and the ratio of their corresponding sides are in the same proportion.
Since the polygons are similar, hence the ratio of their corresponding sides would be congruent. Therefore:
Ratio of smaller polygon to larger polygon = ratio of the perimeter of the smaller polygon to the larger = 3 / 9 = 1/3
The ratio of the perimeter of the smaller polygon to the larger is 1/3.
Find out more on Similar figures at: brainly.com/question/14285697
If you have to change each to a decimal or fraction then
32% = 0.32 or 32/100, 6% = 0.06 or 6/100, 93% = 0.93 or 93/100, 150%= 1.50 or 150/100,
Answer:
96in^2
Step-by-step explanation:
because first find the area of two sides (Length*Height)*2 sides.
Find the area of adjacent sides (Width*Height)*2 sides.
Find the area of ends (Length*Width)*2 ends.
Add the three areas together to find the surface area.
Example: The surface area of a rectangular prism 5 cm long, 3 cm.