Question

What’s the answer?
A.15
B.21
C.10
D.8

Answer 1

• <HGI=21°

Explanation:

As,

GH bisects <FGI

So the two angles <FGH and <HGI are, equal

According to the question,

• 2x+1=3x-9
• 3x-2x=1+9
• x=10

Hence,

<HGI=

• 3x-9
• (3×10)-9
• 30-9
• 21