Question

Find the measure of

Answer 1

Step-by-step explanation:

let us take angle B as x

as we know that in exterior angle property the sum of two interior angles is equal to the exterior angle

therefore , x +60° = 130°

so, x = 130°- 60°

x = 70°

therefore angle B =70°

Answer 2

Answer:

70 degree

Step-by-step explanation:

$180 - 130 = 50(linear \: pair) \\ angle \: b = 180 - (50 + 60) = 180 - 110 \\ = 70 \: (angle \: sum \: property \: of \: triangle)$

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