Question

ABC, if m CAD = 29°, what is m&CAB?
D

Answer 1

Explanation:

the graphic shows that the angle at A is split in half by the line AD (because the angles at both sides of the line are marked as equal, so the whole angle must be 2 times of one of these parts).

so, as CAD = 29°, CAB = 2×CAD = 2×29 = 58°

Answer 2

Explanation:

`m`∠
`CAD`≅
`m`∠
`BAD`

and

`m`∠
`CAB`=
`m`∠
`CAD`+
`m`∠
`BAD`

so

`m`∠
`CAB`
`= 29`°+
`29`°

`m`∠
`CAB=58`°


Hope this helps!