What is the length of side BC of the triangle? Enter your answer in the box. units Triangle A B C with horizontal side B C. Vert ex A lies above side B C. Angle B and angle C are marked congruent. The length of side A C is labeled as x plus 8. The length of side A B is labeled as 2 x minus 1. The length of side B C is labeled as 3 x minus 3.
2 answers:
Answer: Length of BC = 24 units.
Explanation:
Given that in triangle ABC, BC is the base, and angle B = angle C
SInce two angles are equal, ABC is isosceles with sides AB = AC
Given that AC = x+8 and AB = 2x-1
Since AB = AC we get these two are equal. Use this t solve for x.
x+8 = 2x-1
x =9.
It is easy to find BC now.
BC =3x-3
Hence BC =3(9)-3 = 24
Length of BC= 24 units.
Answer:
24 unites
Step-by-step explanation:
Given that in triangle ABC, BC is the base, and angle B = angle C
SInce two angles are equal, ABC is isosceles with sides AB = AC
Given that AC = x+8 and AB = 2x-1
Since AB = AC we get these two are equal. Use this t solve for x.
x+8 = 2x-1
x =9.
It is easy to find BC now.
BC =3x-3
Hence BC =3(9)-3 = 24
Length of BC= 24 units.
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