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18-09-2020
Mathematics

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When viewed from the front, the rope used to tie down a tent forms a pair of supplementary angles with the ground. Find m abc

When viewed from the front the rope used to tie down a tent forms a pair of supplementary angles with the ground Find m abc class=

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18-09-2020

Supplementary angles are angles that add up to 180 degrees.

180 = 3x + 4 + 8x + 11

Combine like terms.

180 = 11x + 15

Subtract 15 from both sides.

165 = 11x

Divide both sides by 11

15 = x

m<ABC = 3x + 4 = 3(15) + 4 = 45 + 4 = 49 degrees.

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