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zaharov [31]
3 years ago
14

Could someone please help me

Mathematics
2 answers:
vichka [17]3 years ago
7 0

Answer:

<h2>\huge \: x  = 7 {0}^{o}  \\  \:  \huge \: y = 3 {0}^{o}  \\  \huge z =  {20}^{o}</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • triangles
  • equation
  • PEMDAS
<h3>tips and formulas:</h3>
  • a straight line contains 180°
  • a triangle contains 180°
<h3>let's solve:</h3>

equation for x

according to the question

110°+x=180°

x=180°-110°

x=70°

equation for y

according to the question

11 {0}^{o}  +  {40}^{o}  + y = 18 {0}^{o}

15 {0}^{o} + y  = 180^{o}

y = 18 {0}^{o}  - 15 {0}^{o}

y = 3 {0}^{o}

equation for z

according to the question

90°+x+z=180°

90°+70°+z=180° (since x=70°)

160°+z=180°

z=180°-160°

z=20°

Scorpion4ik [409]3 years ago
6 0

Answer:

X= 70

Z= 20

y= 30°

Step-by-step explanation:

Finding X:

Sum of angle in a straight line is 180

Therefore X = 180-110

Finding z:

Sum of angle in triangle is 180, and it’s a right angled triangle (90°)

Z= 180-(x+90)

Z= 180-( 70+90)

Finding y, look at the big triangle ABC:

There’s a right angle and <C is 40°,

Therefore <B is 180-(40+90)= 50°

<B= y + z

50° = 20° + y

y= 30°

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