C) 3, 4, 5
any triangle with that ratio will make a right triangle
Answer:
√61
Step-by-step explanation:
Using
√(y2-y1)^2 + (x2-x1)^2
Step-by-step explanation:
y/2=2/5
5y=4
y=4/5
so, y=4/5
<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
For a better understanding of this problem, see the figure below. Our goal is to find
. Since:

and
is a common side both for ΔMRN and ΔMQN, then by SAS postulate, these two triangles are congruent and:

By Pythagorean theorem, for triangle NQP:

Applying Pythagorean theorem again, but for triangle MQN:
