Well there is a lot of trigonometry in this. I will try my best.
Finding: Distance between Wall A and Wall B.
1. Trig and phythagorean properties for left triangle.
30m
2. Trig and Pythagorean properties for right triangle.
40m (approx)
30 + 40 = 70.
Therefore the distance is APPROXIMATELY 70 meters. I haven't learned trig yet so sorry if I am wrong.
Answer:
-25
Step-by-step explanation:
2 x (-5)² - 3 ( -9 x (-5) - 40)²
2 x 25 - 3 (45 - 40)²
2 x 5² - 3 x 5²
- 5²
- 25
Answer:
see the explanation
Step-by-step explanation:
we know that
An equilateral triangle has three equal sides and three equal interior angles.
The measure of each interior angle is 60 degree
see the attached figure to better understand the problem
Let
b ----> the length side of the triangle
In the right triangle ABD
----> by SOH (opposite side divided by the hypotenuse)
substitute the given values

solve for b

Remember that

substitute


simplify
