Question

Please help me. I suck at math

Answer 1

Answer is ...Obtuse

Explanation:

`(m<ABC)/(2) = m< CBD`

`(5x + 4)/(2) = (3)/(2) x + 21`

`(5x + 4)/(2) = (3x + 42)/(2)`

`5x + 4 = 3x + 42`

`5x - 3x = 42 - 4`

`2x = 38`

`x = 19`

`substituting \: x = 19 \: \:in \: \: \: \: \: \: \: \\ m<ABC =\: \: 5x + 4,`

We get,

m<ABC =

`(5 * 19) + 4 = 99`

Hence <ABC is obtuse