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Section 5.5
Section 5.5
1. Find the missing angle.
2. In ΔABC, m A = 9x-4, m B= 4x – 16, m C= 68-∠ ∠ ∠2x.
Find x and the measure of each angle.
The angle opposite the longest side of a triangle is the biggest angle and the angle opposite the shortest side of a triangle is the smallest angle.
Write the angles in order from smallest to largest.
Write the sides in order from shortest to longest.
m∠ A = 9x + 29m∠ B = 93 – 5xm∠ C = 10x + 2
m∠ A = 9x - 4m∠ B = 4x - 16m∠ C = 68 – 2x
m∠ A = 12x - 9m∠ B = 62 – 3xm∠ C = 16x + 2
Compare mBAC and mDAC.
Compare EF and FG.
Compare mEGH and mEGF.
Compare BC and AB.
The distances of 3 blocks and 4 blocks are the same in both triangles.
Lesson Quiz: Part I
1. Compare mABC and mDEF.
2. Compare PS and QR.
A (5,2)B(-5,3)C(-2,-2)
A (4,3)B(-3, 2)C(1, -2)
