Based on the distance between Martha and Matthew and the distance of Matthew from the launch point, the height of the balloon is 12 meters.
The height of the balloon can be found by using the Pythagorean theorem as this situation models a right angled triangle.
The height of the balloon is:
Distance between Matthew and Martha² = Distance of Matthew from launch point² + Height²
20² = 16² + Height²
Height² = 20² - 16²
Solving gives:
Height² = 400 - 256
Height = √144
= 12 meters
Find out more on the Pythagorean theorem at https://brainly.com/question/343682
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