Question

Calculate the length of the
unknown side in each of the
following triangles.​

Answer 1

Answer:

15

Step-by-step explanation:

Perpendicular²+base²=Hypotenuse ²

let perpendicular=x

Base=20

Hypotenuse=25

So 20²+x²=25²

400+x²=625

x²=625-400

x²=225

x²=15² (Root 225=15)

x=15

So unknown side length=15