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svetoff [14.1K]
3 years ago
5

In the diagram above,PQR=125°, QRS=r,RST=80°and STU=44°. Calculate the value of r​

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0

Answer:

∆ PQR is congruent to ∆ STU

This means --

P = S

Q = T

R = U

R = 80°

S = P = 70°

So in ∆PQR, we know R = 80° , P = 70° and Q = ?

Using angle sum property of triangle,

P+ Q + R = 180°

70° + 80° + Q = 180°

150° + Q = 180°

Q = 30°

Hope This Helps :D

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