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Ghella [55]
3 years ago
7

NEED AN ANSWER ASAP!!!! Lines s and t are parallel. picture not drawn to scale What is the measure of ACB? A. 96° B. 143° C. 133

° D. 53°

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

The measure of angle ACB is 96°.

Step-by-step explanation:

Given:

line s || line t

m∠ ABC = 47°

m∠ CDE = 37°

Name the points on line s as D and E shown in diagram below.

To Find:

m∠ ACB = ?

Solution:

line s || line t   .................{Given}

∴ Alternate Interior Angles are equal

m∠ BAC = m∠ CDE = 37° ............{Alternate Interior Angles }

∴ m∠ BAC = 37°

Now in Δ ACB

m∠ BAC + m∠ ABC  + m∠ ACB = 180°  ... {Angle Sum Property of Triangle}

37+ 47+ \angle ACB = 180

m∠ ACB = 180 - 84

m∠ ACB = 96°

∴ m∠ ACB = 96°

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