What is m A) 39°
B 52°
C 78°
D 141°

A

Step-by-step explanation:

The inscribed angle FGH is half the measure of its intercepted arc FH

arc FH = 360° - arc GF - arc HG = 360° - 115° - 167° = 78° , then

∠ FGH = × 78° = 39° → A

i do not know this sorry : (

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.