Answer:
B
Step-by-step explanation:
No explanation
Answer:
subtraction & multiplication
Step-by-step explanation:
20^2+21^2=29^2 can be used to determine if the triangle is a right triangle
Answer:
x = 15
Step-by-step explanation:
Here's an easy way to solve this:
OAP appears to be a right isosceles triangle. Angle O is a right angle, so the other angles are congruent (the same).
180-90 = 90
90÷2 = 45
3x = 45
x = 15
