3 years ago

Answer: Need help with this plz

Mathematics

1 answer:

julsineya [31]3 years ago

8 0

Answer:

(a) 3x+28+5x+52+2x-10=180 (∠ sum of Δ)

10x+70=180

10x=110

x=11

(b) ∠C = 2x-10

= 2(11)-10

= 12°

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