First: Sides are not acute or obtuse. ANGLES are acute or obtuse.
An acute triangle has to have all angles acute. Examples:
60, 60, 60
70, 60, 50
45, 50, 85
45, 45. 90
30, 60, 90
But if one of the angles is obtuse (>90 degrees), then the other two must be acute. Of course, *this* triangle would not be called an acute triangle, because one of its angles is abtuse; it would be called an obtuse triangle.
it is an acute triangle.
It will be a right angle triangle and the other sides will have acute angles.
It's acute. Sum the squares of the shorter two sides and compare to the square of the longest side. If the sum is less, the triangle is obtuse. If they are equal, the triangle is right angle. If the sum is more, the triangle is acute. 132 + 152 = 169 + 225 = 394 172 = 289 Sum is more so triangle is acute.
An acute angled scalene triangle.
First you would square the length of each of the sides. You'd add the squares of the smaller two numbers. If they are smaller than the square of the biggest side, then the triangle is obtuse. If their sum is bigger, then the triangle is acute. If they are equal, then the triangle is a right triangle.Example:length of sides-23, 34, 49232+342__492529+1156__24011685
None because no triangle has any parallel sides.
Sides aren't acute, angles are. A triangle with three acute angles would be called (appropriately enough) an acute triangle.
They both have 3 sides but an isosceles triangle has two equal sides whereas an acute triangle with different acute angles has no equal sides and is said to be a scalene triangle, or an acute triangle with three equal acute angles (of 60° each) and three equal sides is called an equilateral triangle.
An acute triangle may have three, two, or no congruent sides.
An acute isosceles triangle has three acute angles (
None, two or three
acute triangle
acute triangle
An acute triangle.
it is an acute triangle.
There is no rule for the perimeter of an acute triangle. You simply need to add the sides.
A scalene triangle is a triangle that has three unequal sides.