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juin [17]
2 years ago
7

Find the measurement of arc AB 45° 60° 90° 180°

Mathematics
1 answer:
Cloud [144]2 years ago
5 0

the triangle shown in the middle is a 45-90-45 degree triangle ( the orange lines on the legs mean legs are equal)

 so if you were to mirror it there would be 90 degrees between A & B

 answer is 90 degrees

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WORKINGS

 

Given that ABCD ≅ FGHJ

We know that corresponding angles of two congruent quadrilaterals are equal

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m∠A = m∠F

m∠B = m∠G

m∠C = m∠H

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Given,

m∠C = 9x – 7

m∠H = 5x + 13

 

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9x – 5x = 5x – 5x + 20

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To determine the measures of angle C and angle H

m∠C = m∠H

 

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