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How many acute angles does a trapezoid have?
A trapezoid always has two acute angles. the base angles have to be acute because the lower base angles and the upper base angles are complementary so since the upper base angle is always obtuse, the lower base angles have to be acute.
Are alternative interior angles always acute?
no
If the vertex angles of two isosceles triangles are congruent are the triangles always similar?
Yes, they are.
What is the converse of adjacent angles have a common vertex?
If two angles do not have a common vertex they cannot be adjacent angles.
A triangle that has three 3 acute angles is a what?
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.
What are the vertex or point where 2 lines have intersected?
Acute angles.
How many acute angles does a trapezoid have?
A trapezoid always has two acute angles. the base angles have to be acute because the lower base angles and the upper base angles are complementary so since the upper base angle is always obtuse, the lower base angles have to be acute.
Will an inscribed angle always have its vertex on the circle?
Yes all inscribed angles in a circle have their vertex on the circumference of the circle. Central angles have their vertex at the center of the circle.
Are alternative interior angles always acute?
no
Is two acute angles are always complementary?
No
Does a scalene triangle always has three acute angles?
No, not always
Why does acute angles always less?
An acute angle is greater than 0 but less than 90 degrees
What is the maximum number of vertex angles on an irregular decagon that can be acute?
Take a star for example, the points are acute angles, so, there would be five. * * * * * Taking a star, for example, does not give the maximum because the maximum is likely to appear in an unusual shape. It should be possible to have a decagon with 7 acute angles and 3 reflex angles.
If two angles of a triangle are acute must the the third angle always be acute?
No. In fact, if one of the angles is not acute (a right angle or obtuse), the other two must be acute.
The acute angles of a right triangle are always congruent?
No.
Does an isosceles triangle always have acute angles?
Yes
What are angles that share a vertex and a side of a transversal but no interior points?
The angles that share a vertex and a side of a transversal but no interior points are called vertical angles. Vertical angles are formed when two lines intersect, and they are always congruent.
