JKM4060 JKM4060

02-12-2020
Mathematics

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Determine the measure of the unknown angle in the triangle.

Determine the measure of the unknown angle in the triangle class=

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tony16146 tony16146

02-12-2020

you add 78 plus 37 then subtract from 180

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tasni109 tasni109

02-12-2020

Answer:

65°

Step-by-step explanation:

Let the unknown angle be ∠ABC

∠ABC + 78° + 37° = 180° (angle sum property of a triangle)

∠ABC + 115° = 180°

∠ABC = 180° - 115°

∠ABC = 65°

∴the unknown angle in the triangle is 65°

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