Question

Please help its urgent

Answer 1

4a=76°

2a=38°

X=104°

Explanation:

the sum of angles triangle are 180°

so,

66°+4a+2a= 180°

or, 66°+6a=180°

or,6a= 180°-66°

or, a= 114°÷6

or, a= 19°

then, angle B = 4a= 4xa= 4x19°= 76°

angle C = 2x19°= 38°

lastly,

4a+x=180°[being straight angle]

76°+x=180°

x= 180°-76°

x= 104°.