Question

Need this please !!!!!

Answer 1

• m∠H = 53°
• m∠I = 74°
• m∠J = 53°

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Since the triangle is isosceles, the two angles opposite to equal sides are congruent:

• m∠J = m∠H = (3x + 11)°

The sum of the three angles is 180°:

• 2(3x + 11) + 4x + 18 = 180
• 6x + 22 + 4x + 18 = 180
• 10x + 40 = 180
• 10x = 140
• x = 14

The angle measures are:

• m∠J = m∠H = (3*14 + 11)° = 53°
• m∠I = (4*14 + 18)° = 74°