Answer:
the answer is =-3±
/2
Step-by-step explanation:
Answer:
1 1/3
Step-by-step explanation:
Answer:
Hey there!
The perimeter of the triangle is the distance around it.
We can find the distance of two points using the distance formula, and add up all the distances to find the total distance.
-4, -6 to 3, 3 is 2
3, 3 to 7, 2 is 5
7, 2 to -4, -6 is about 5.4
2+5+5.39=12.4, which is closest to 12.36.
Let me know if this helps :)
Answer:
The height of the tree=8.42 m
Step-by-step explanation:
We are given that
Height of Joshua, h=1.45 m
Length of tree's shadow, L=31.65 m
Distance between tree and Joshua=26.2 m
We have to find the height of the tree.
BC=26.2 m
BD=31.65m
CD=BD-BC
CD=31.65-26.2=5.45 m
EC=1.45 m
All right triangles are similar .When two triangles are similar then the ratio of their corresponding sides are equal.
![\triangle ABD\sim \triangle ECD](https://tex.z-dn.net/?f=%5Ctriangle%20ABD%5Csim%20%5Ctriangle%20ECD)
![\frac{AB}{EC}=\frac{BD}{CD}](https://tex.z-dn.net/?f=%5Cfrac%7BAB%7D%7BEC%7D%3D%5Cfrac%7BBD%7D%7BCD%7D)
Substitute the values
![\frac{AB}{1.45}=\frac{31.65}{5.45}](https://tex.z-dn.net/?f=%5Cfrac%7BAB%7D%7B1.45%7D%3D%5Cfrac%7B31.65%7D%7B5.45%7D)
![AB=\frac{31.65\times 1.45}{5.45}](https://tex.z-dn.net/?f=AB%3D%5Cfrac%7B31.65%5Ctimes%201.45%7D%7B5.45%7D)
![AB=8.42m](https://tex.z-dn.net/?f=AB%3D8.42m)
Hence, the height of the tree=8.42 m