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Are you talking about the angle A. If you are then at what point of the triangle is the angle A.

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14y ago

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what- complete the proof that ABC is isosceles?

45


If side ac is 5 and bc is 6 what is the measure of ab?

Not enough information has been given to find the measure of the 3rd side of the triangle ABC but if it is in the form of an isosceles triangle then the 3rd side would work out as 6 units.


If the measure of bad equals 5x plus 8 and the measure of bcd equals 7x-4 then what does the measure of abc equal?

abc = 38


Write a paragraph proof to show that the base angles of an isosceles trapezoid are congruent?

To prove that the base angles of an isosceles trapezoid are congruent, consider an isosceles trapezoid ( ABCD ) with ( AB \parallel CD ) and ( AD \cong BC ). By the properties of parallel lines, the angles ( \angle DAB ) and ( \angle ABC ) are consecutive interior angles formed by the transversal ( AD ) and ( BC ), respectively, thus ( \angle DAB + \angle ABC = 180^\circ ). Similarly, the angles ( \angle ADC ) and ( \angle BCD ) also sum to ( 180^\circ ). Since ( AD \cong BC ) and the trapezoid is isosceles, the two pairs of opposite angles must be equal, leading to ( \angle DAB \cong \angle ABC ) and ( \angle ADC \cong \angle BCD ), proving that the base angles ( \angle DAB ) and ( \angle ABC ) are congruent.


What is the measure of angle ABC in a right triangle?

In a right triangle, the sum of the angles is always 180 degrees, with one angle measuring 90 degrees. Therefore, the measures of the other two angles, including angle ABC, must add up to 90 degrees. To find the measure of angle ABC, you would need the measure of the other non-right angle in the triangle. If, for example, angle BAC is known to be 30 degrees, then angle ABC would measure 60 degrees.