Explain please thanks
Mathematics
Natalia1634
Question
Explain please thanks
1 Answer

1. User Answers Catya
all the angles inside a triangle add up to 180°.
(2x + 15) + (5x + 5) + x = 180
8x + 20 = 180
8x = 180  20
8x = 160
x = 160/8
x = 20
the question is asking what angle B is,
B = 2(20) + 15
B = 40 + 15
B = 55°