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Vanyuwa [196]
2 years ago
7

Can someone pls help

Mathematics
2 answers:
-Dominant- [34]2 years ago
6 0

<u>❒ Required Solution:</u>

  • We are here to find the three angles with the help of the angle sum property (Sum of the angles of a triangle = 180°). So, using this property we can find all the angles.

<u>❍ According to the question :</u>

\\ \tt \implies \: 60{}^{ \circ} + 60{}^{ \circ} +(4x - 80) {}^{ \circ} = 180{}^{ \circ}  \\  \\  \\   \implies \tt \: 120{}^{ \circ} - 80{}^{ \circ} + 4x = 180{}^{ \circ}  \:  \:  \:  \:  \:  \: \\  \\  \\  \implies  \tt 40{}^{ \circ} + 4x = 180{}^{ \circ}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\  \\  \\  \implies \tt \: 4x = 180{}^{ \circ} - 140{}^{ \circ} \:  \:  \:  \:  \:  \:  \\  \\  \\  \tt \implies \: 4x = 140{}^{ \circ} \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\  \\  \implies \tt \: x =  \frac{140}{4}   \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\  \\  \\  \tt \implies \: { \boxed{ \mathfrak{ \pmb{ \pink{x = 35}}}}} \bigstar \\  \\  \\

Katyanochek1 [597]2 years ago
3 0

Answer:

x = 35

Step-by-step explanation:

Sum of angles of triangle = 180°

  • 60 + 60 + 4x - 80 = 180
  • 40 + 4x = 180
  • 4x = 140
  • x = 140/4
  • x = 35°
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