Answer:
278.25 cm2
Step-by-step explanation:
If the width of the rectangle is x (cm), as the length is 8cm longer, so that the length of the rectangle is: x + 8 (cm).
In the attached image, we can see the length of each side. Total length of the sides are 90 cm.
=> (x + x + 8) + x + 8 + (x+8) + (x + x + 8) + x + 8 + (x +8) = 90
=> 8x + 48 = 90
=> 8x = 90 - 48 = 42
=> x =42/8 = 5.25 (cm)
=> The width of the rectangle is 5.25cm
=> The length of the rectangle is: 5.25 + 8 = 13.25 cm
=> The area of one rectangle is: Length x Width = 5.25 x 13.25 = 69.5625 cm2
As the 8-sided shape is made from 4 rectangles, so that:
Area of 8 sided shape = 4 x Area of the rectangle = 4 x 69.5625 = 278.25 cm2
Did you forget to attach an image?
Answer:
A'(0,0) and B'(0,7.5) and C'(12.5,7.5) and D'(12.5,0)
Step-by-step explanation:
<u><em>Find the coordinates of the point after dilation</em></u>
A'(0,0) and B'(0,7.5) and C'(12.5,7.5) and D'(12.5,0)
<em>I hope this helps you</em>
<em>:)</em>
Answer: 4z + 2z
Step-by-step explanation:
Add 2 + 2 get 4. Then bring z down and have 4z. Now you only have 2z so it'll be 4z + 2z