an engineer is trying to find the width of a river. there is two 90 degree angles . there is 19 meter there is 19.7 meter
and 15.4 meter
To find the width of the river, we can use the concept of similar triangles.
Let's assume that the width of the river is represented by the variable "x" meters.
The engineer can set up a proportion based on the similar triangles formed by the two 90-degree angles:
(19.7 - 19) / x = 19 / 15.4
Cross multiplying, we get:
(19.7 - 19) * 15.4 = 19 * x
Simplifying, we have:
(0.7) * 15.4 = 19 * x
10.78 = 19 * x
Dividing both sides by 19, we find:
x = 10.78 / 19
x ≈ 0.57 meters
Therefore, the engineer can conclude that the width of the river is approximately 0.57 meters.