Question

ans me guess of 2nd question ​

Answer 1

Answer:

a= 16.5 , b = 23.2

Step-by-step explanation:

$(5b + 6) = ( 8a - 10) \: \: \: \: \: ...(opposite \: angles \: of\: parallelogram \: are \: congruent \: ) \\ 5b - 8a = - 10 - 6 \\ 5b - \: 8a = - 16 \: \: \: \: \: \: ...(1) \\ \\( 4a - 8) \: + (8a - 10) = 180 \: \: \: \: \: ...(concecutive \: angles \: are \: supplimentary \: ) \\ 12a - 18 = 180 \\ 12a = 180 + 18 \\ 12a = 198 \\ a = \frac{198}{12} \\ a = 16.5$

$put \: a = 16.5 \: in \: eq \: .(1) \\ 5b - 8a = - 16 \\ 5b - 8(16.5) = - 16 \\ 5b - 132 = - 16 \\ 5b = - 16 + 132 \\ 5b = 116 \\ b = \frac{116}{5} \\ b = 23.2$