Which triangle is a 30°-60°-90° triangle? 10
5
5/3

15
5/3
5

5
10
10./3

15
10
5.13

option one is right

Step-by-step explanation:

the very first triangle is the 30 -69 -90 degree triangle ️

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.