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.
no
Yes, they are.
If two angles do not have a common vertex they cannot be adjacent angles.
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.
Acute angles.
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.
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.
no
No
No, not always
An acute angle is greater than 0 but less than 90 degrees
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.
No. In fact, if one of the angles is not acute (a right angle or obtuse), the other two must be acute.
Yes
No.
MYou just described an equilateral triangle which is in fact isosceles and acute, and additional any isosceles triangle with a vertex angle of less than 90 is acute as the base angles are congruent and all three angles must add to180