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Three angles on a straight line are shown. What is the largest of them?

Class 8Equations in GeometryLinear Equations

A80°
B60°
C40°
D70°

Step-by-Step Solution

(2 x - 10) + x + (x + 30) = 180

, so

4 x + 20 = 180, x = 40

. Angles: 70°, 40°, 70°. Largest = 70°.

Answer: D) 70°

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