9. How many triangles are possible of angles 60°, 90° and 30°?
(a) Only one
(b) No one
(c) uncountable
(d) Three
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1
Answer:
A 30-60-90 triangle is a special right triangle (a right triangle being any triangle that contains a 90 degree angle) that always has degree angles of 30 degrees, 60 degrees, and 90 degrees. Because it is a special triangle, it also has side length values which are always in a consistent relationship with one another.
Answered by
2
Answer:
Only One.
Because according to Triangle sum property a triangle can be formed by 180 degree.Therefor If you add and see 60,90,30.The Sum Is 180.
60+90+30 = 180 degree
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