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30 points help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! .

30 points help class=

Respuesta :

amna04352

Answer:

a) a = 51°

b) b = 24°

Step-by-step explanation:

a) a + 90 + 39 = 180

a = 180 - 129

a = 51

b) 64 + 68 + 2b = 180

2b = 180 - 132

2b = 48

b = 24

09pqr4sT

Answer:

[tex]\large \boxed{\mathrm{a=51}}[/tex]

[tex]\large \boxed{\mathrm{b=24}}[/tex]

Step-by-step explanation:

Angles in a triangle add up to 180 degrees.

The first triangle has one right angle or 90 degrees angle.

[tex]a+39+90=180[/tex]

Solve for a.

[tex]a=180-39-90[/tex]

[tex]a=51[/tex]

[tex]2b+68+64=180[/tex]

Solve for b.

[tex]2b=180-64-68[/tex]

[tex]2b=48[/tex]

[tex]b=24[/tex]

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