Answer: (7x - 2) + (4x) + (5x - 10) = 180
Explanation: The sum of all angles in a triangle is 180º, so you need to make all the angles in the triangle equal to 180º when writing an equation.
Hidden right triangle
28 feet tall (1 leg)
the piece that fell over is the hypotonuse
last leg is what we need to find
81-28=53
a²+b²=c²
a and b are legs and c is the hypotonuse
given
on leg is 28 and the hypotonuse is 53
th othe leg is b
28²+b²=53²
784+b²=2809
minus 784 from both sides
b²=2025
sqrt both sides
b=45
answer is 45ft
Answer:
c
Step-by-step explanation:
Please find the attached diagram for a better understanding of the solution provided here.
In the attached diagram, OP is the height of the tree.
Rest of the diagram should be sufficiently self explanatory.
In ,
.........................Equation #1
Again, in ,
.........................Equation #2
Thus, equating the equations Equation #1 and Equation #2, we have:
Evaluating we get:
Thus the height of the tree is approximately 49.26 feet