SOLUTION: ΔABC is an isosceles triangle in which angles B and C are congruent. If m∠B = (4x + 10)° and m∠C = (x - 31)°, find the measure of angle A.
Algebra.Com
Question 1100120: ΔABC is an isosceles triangle in which angles B and C are congruent. If m∠B = (4x + 10)° and m∠C = (x - 31)°, find the measure of angle A.
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
Congruent means that they have equal measures.
;
Solve for x.
RELATED QUESTIONS
ΔABC is an isosceles triangle in which angles B and C are congruent. If m∠B =... (answered by ewatrrr)
Δ ABC is isosceles. Angles B and C are congruent. The m∠A = 40°, m∠B =... (answered by stanbon)
In ΔABC, m∠C = 118 and m∠B = 44. Which is the shortest side of the... (answered by vleith)
In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and... (answered by Fombitz)
In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and... (answered by Fombitz,GrantJones,Alan3354)
In ΔABC, m∠A = 3x + 40, m∠B = 8x + 35, and m∠C = 10x. Which is the (answered by richwmiller)
In ∆ABC, m∠A = 3x + 1, m∠B = 4x - 17,and m∠C = 5x - 20. Which... (answered by Fombitz)
Triangle ABC has an exterior angle, ∠DAB, and two remote inner angles, ∠B and (answered by ankor@dixie-net.com)
In triangle MNO, the measure of ∠N is 90°, and ∠M = ∠O. If ΔMNO... (answered by Edwin McCravy)