Question

HELLLLLLLLLLLLPPPPPPPPP PLZZZZZZZ!

Answer 1

Remember that regular polygon has equal sides and equal interior angles so ,

in the figure, the length of the side of the two smaller equal Triangles is equal to the length of the sides of the regular pentagon

there fore

the triangle in white of the figure is an isosceles triangle

the measure of the vertex angle of the isosceles triangle is equal to

360-(108+60+60)=132

Remember that

the sum of the interior angles of the must be equal to 180 degrees

so

2b+132=180

slove for b

2b=180-132

2b=48

b=24(here all values are in degrees )