25 metres tall.
Explanation:
The heights of the trees are directly proportional to the length of their shadows because at the same time of day, the sun will be at the same angle in the sky.
The trees and their shadows form 2 similar triangles:
Write as a proportion:
<span><span>heightshadow</span> <span>x20</span>=<span>1512</span></span>
<span>12x=20×15</span>
<span>x=<span><span>20×15</span>12</span></span>
<span>x=25</span> metres tall.
As check: find the constant for each tree:
<span><span>1512</span>=1.25 and <span>2520</span>=<span>1.25</span></span>
<span><span>
</span></span>
<span><span>
</span></span>
<span><span>i hope this help</span></span>
<span><span>
</span></span>
What is the area of the triangular base?
8 square feet
What is the length of edge DF?
4 feet
Step-by-step explanation:
Opposite rays is the answer....
Answer:slope = -2/3
Explanation:Slope of line can be calculated using the following formula:
slope =

We are given:
point (1,7) representing (x1,y1)
point (10,1) representing (x2,y2)
Substitute with the givens in the above formula to get the slope as follows:
slope =

= -2/3
Hope this helps :)
B? <span>
1 2/3 </span><span>÷ 1 1/9 = 1.5
2.34 </span><span>÷ 0.6 = 3.9</span>