Answer:
20
Step-by-step explanation:
apply BODMAS
10*2+3+2-5
20
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Your answer would be option 2. Use the slope formula to see if any sides are perpendicular. This is because a right triangle must have 2 perpendicular sides that form a 90° angle for it to be a right triangle, so finding these would prove it.
I hope this helps!
Answer:
53
Step-by-step explanation:
73 - 20(1)
73 - 20 = 53