Answer:
12.6
Step-by-step explanation:
4.2×3=12.6
I hope this answer can help you

you're given all those values, h,k and r, so just plug them in
Answer:
acute triangle, obtuse triangle
Step-by-step explanation:
The sums of interior angles of all triangles are 180°, but the triangles are only similar if their corresponding angles are congruent.
An acute triangle and an obtuse triangle both have angle sums of 180°, but can never be similar to one another.
Answer:
71
Step-by-step explanation:
(73)-2 is equivalent to 71