What is the length of the unknown leg in the right triangle

Option D. 15m

Step-by-step explanation:

In the given right triangle b is the unknown leg.

we have to find the value of b.

By Pythagoras theorem in a right angle triangle

Hypotenuse² = Base² + Height²

25² = 20² + b²

625 = 400 + b²

b² = 625 - 400

b² = 225

b = √225

b = 15 m

Option D. 15m is the answer.

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation: