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Assuming the base is the non-equal side, then the other two sides sum to 60 - 21 = 39.
39/2 - 19.5 is the length of the each of the other two sides.
What else can I help you with?
In an isosceles triangle the base angles are?
The base angles of an isosceles triangle are congruent.
How do you find the area and perimiter of a triangle?
To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle. To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle.
An angle not congruent to the base angles of an isosceles triangle?
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
Which is the base of an isosceles triangle?
Two sides of an isosceles triangle are equal. The base is the other side.
What is the same about an isosceles triangle and an isosceles trapezoid?
In an isosceles triangle and an isosceles trapezoid, both base angles are congruent
How do you find the base and height of an isosceles triangle?
An isosceles triangle has 2 equal base angles and its height is perpendicular from its apex to the centre of its base
How an isosceles trapezoid is related to an isosceles triangle?
Both have equal sides and equal base angles An isosceles trapezoid is made from an isosceles triangle that's had its top cut off parallel to its base
What is it called if base angles are equal in a triangle?
It is an isosceles triangle
What are 2 properties of an isosceles triangle?
-- An isosceles triangle has two equal sides. -- An isosceles triangle has two equal angles. -- An isosceles triangle has two equal interior-angle bisectors. -- The bisector of the vertex angle of an isosceles triangle is also the perpendicular bisector of the triangle's base.
The side of an isosceles triangle that is not equal to the other two is?
The unequal side of an isosceles triangle is called the base.
What is the angle opposite the base angles of an isosceles triangle?
The third angle of an isosceles triangle doesn't have a name.
How you can draw a altitude with isosceles triangle?
The altitude line is perpendicular to the base and bisects the apex of the isosceles triangle.
