Question

pls do all i mark you as brainlist
find the value of a and b​

Answer 1

Answer:

a. In ΔXYX with external point P.

.: angle PXY + YXZ = 180° (linear pair)

.: 137° + angle a =180°

.: a = 180 - 137

.: a = 43° or angle YXZ = 43°

Now,

In ΔXYZ,

.: angle xyz + yzx + zxy = 180° ( angle sum. property)

xyz + 74°+ 43° = 180°

b + 117° = 180°

b = 180 - 117

b = 63°

.: a =43°

and, b = 63°

hence prove.

d. In Δ XYX ,with external line P and Q in which P is on YZ and Q is on XY.

Here,

angle XYZ = PYQ ( vertically opposite angle)

.: XYZ = 90° or a = 90°

Now,

XYZ + YZX + ZXY = 180 (angle sum property)

.: 90 + b + 32° = 180°

.: b + 122° = 180°

.: b = 52°

so,

a = 90°

b = 52°

hence prove.

hope it help u.

plz make me a brainlists.

and follow me i will follow u back.

Answer 2

Step-by-step explanation:

SUM OF ALL THE SIDES OF TRIANGLE = 180

1.

• a = 180 - 74
• a = 106
• b = 106 - 74
• b = 32

2.

• a = 180 - 32
• a = 148
• b = 148 - 32
• b = 116

HERE IS YOUR ANSWER

HOPE IT IS HELPFUL FOR YOU

THANK YOU