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3 years ago

Help!! photo included

Mathematics

1 answer:

BabaBlast [244]3 years ago

4 0

Answer:

< S = 32

Step-by-step explanation:

< S = 180 - (< R + < T)

< R = < T

15x - 31 = 9x + 11

6x = 42

x = 7

< R = 74

< S = 180 - (74 + 74)

< S = 180 - 148

< S = 32

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Step-by-step explanation:

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Since the figures are similar then the ratios of corresponding sides are in proportion , that is

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Read 2 more answers

Solve.

Anna [14]

Answer:

The first angle is 68.

Step-by-step explanation:

$x_{1}+x_{2}+x_{3}=180\\x_{1} = 4*x_{2}\\x_{3}=x_{2}+ 78\\4*x_{2} + x_{2} + x_{2}+ 78 = 180\\6*x_{2}=102\\x_{2} = 17\\$

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