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3 years ago

Geometry help please!!

Mathematics

1 answer:

denis23 [38]3 years ago

6 0

Answer:

a. 75°

Step-by-step explanation:

$m\angle A = m\angle C... (given)$

$(2x+15)\degree = (3x - 15)\degree$

$2x+15 = 3x - 15$

$2x - 3x=-15-15$

$- x=-30$

$x=30$

$\because m\angle A = (2x+15)\degree$

$\therefore m\angle A = (2\times 30+15)\degree$

$\therefore m\angle A = (60+15)\degree$

$\therefore m\angle A = 75\degree$

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