Question

Only answer if you know pls​

Answer 1

Answer:

m∠A = 115° and m∠C = 50°

Step-by-step explanation:

We know: the sum of the measures of triangle angles is 180°.

Therefore we have the equation:

$(4x-13)+15+(x+18)=180$             combine like terms

$(4x+x)+(-13+15+18)=180$

$5x+20=180$               subtract 20 from both sides

$5x=160$            divide both sides by 5

$x=32$

$m\angle A=(4x-13)^o\\\\m\angle C=(x+18)^o$

Substitute:

$m\angle A=(4\cdot32-13)^o=(128-13)^o=115^o\\\\m\angle C=(32+18)^o=50^o$