they can be, depending on the information that you are given. If you know lengths of sides, then YES.
12
A triangle is acute if it is less than 90 degrees. It is obtuse if more than 90 degrees
If you know the lengths of 2 sides and the included angle then use: Area of a triangle = 1/2*a*b*sinC
If you only know the hypotenuse, you can't tell the leg lengths. There are an infinite number of possibilities. The only thing you know for sure is that the sum of their squares is 1,024. If you had one other piece of information ... the length of one leg or the size of one acute angle ... then you'd know or could calculate all 3 sides and 3 angles.
they can be, depending on the information that you are given. If you know lengths of sides, then YES.
12
You look at the lengths of the sided of the triangle. If the two lengths are same, the triangle is an isosceles triangle. If all the lengths are same, the triangle is an equilateral triangle. If none of the lengths are same, the triangle is a scalene triangle.
Measure two of them. Then the third is 180 degrees minus the two that you know. Or measure the lengths of the sides and use the cosine rule.
From geometry, we know that it is possible to calculate unknown lengths and angles of a triangle given particular information regarding the other angles and lengths of the sides of a triangle. For example, given beginning coordinates such as (x,y) in plane coordinates or the latitude and longitude, it is then possible to calculate new coordinates by measuring certain angles and distances (lengths of sides of a triangle).
A triangle is acute if it is less than 90 degrees. It is obtuse if more than 90 degrees
If you know the lengths of 2 sides and the included angle then use: Area of a triangle = 1/2*a*b*sinC
If you only know the hypotenuse, you can't tell the leg lengths. There are an infinite number of possibilities. The only thing you know for sure is that the sum of their squares is 1,024. If you had one other piece of information ... the length of one leg or the size of one acute angle ... then you'd know or could calculate all 3 sides and 3 angles.
Lenths of the 2 shortests sides added together has to be greater than length of the longest side.
yes.
If it contains a 90 degree angle and two acute angles that add up to 90 degrees then it is a right angle triangle.
if you know what a acute triangle looks like and you know what a isosceles triangle looks like just combined them together and then find the angles and degrees you'll find what a acute isosceles triangle looks like if you got the degrees right and angles