Answer:
Area of the figure= ![51.5feet^2](https://tex.z-dn.net/?f=51.5feet%5E2)
Step-by-step explanation:
Area of the figure=Area of the middle rectangle+ Area the the two triangles
Area of the rectangle=Length*Width
![Length= 8+3 =11 feet\\\\Width=4 feet](https://tex.z-dn.net/?f=Length%3D%208%2B3%20%3D11%20feet%5C%5C%5C%5CWidth%3D4%20feet)
![Area = 11*4\\\\ =44 feet^2](https://tex.z-dn.net/?f=Area%20%3D%2011%2A4%5C%5C%5C%5C%20%20%20%20%20%20%3D44%20feet%5E2)
Area of the triangle with the height of 2 feet and base= 3 feet
Area= ![\frac{1}{2} *Base*Height](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%2ABase%2AHeight)
=![=\frac{1}{2} *3*2\\\\=\frac{1}{2}*6\\\\ =3 feet^2](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B2%7D%20%2A3%2A2%5C%5C%5C%5C%3D%5Cfrac%7B1%7D%7B2%7D%2A6%5C%5C%5C%5C%20%3D3%20feet%5E2)
Area of the triangle with the Height=3 feet and Base= 3 feet
Area= ![\frac{1}{2} *Base*Height](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%2ABase%2AHeight)
![=\frac{1}{2}*3*3\\\\ =\frac{1}{2}*9\\\\ =4.5feet^2](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B2%7D%2A3%2A3%5C%5C%5C%5C%20%3D%5Cfrac%7B1%7D%7B2%7D%2A9%5C%5C%5C%5C%20%3D4.5feet%5E2)
Total Area of the figure![=44+3+4.5=51.5 feet^2](https://tex.z-dn.net/?f=%3D44%2B3%2B4.5%3D51.5%20feet%5E2)
Answer:
Length of side of rhombus is
Step-by-step explanation:
Given Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC. We have to find the length of side of rhombus.
It is also given that AB=a and AC=b
Let side of rhombus is x.
In ΔCEF and ΔCBA
∠CEF=∠CBA (∵Corresponding angles)
∠CFE=∠CAB (∵Corresponding angles)
By AA similarity rule, ΔCEF~ΔCBA
∴ their sides are in proportion
![\frac{EF}{AB}=\frac{CF}{AC}](https://tex.z-dn.net/?f=%5Cfrac%7BEF%7D%7BAB%7D%3D%5Cfrac%7BCF%7D%7BAC%7D)
⇒ ![\frac{x}{a}=\frac{b-x}{b}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7Ba%7D%3D%5Cfrac%7Bb-x%7D%7Bb%7D)
⇒ ![xb=ab-ax](https://tex.z-dn.net/?f=xb%3Dab-ax)
⇒ ![x(a+b)=ab](https://tex.z-dn.net/?f=x%28a%2Bb%29%3Dab)
⇒ ![x=\frac{ab}{a+b}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7Bab%7D%7Ba%2Bb%7D)
Hence, length of side of rhombus is
408 round to the nearest tenth: 410