Question

Determine the angles of each of the following triangles
Fig. 12
Fig. 13​

Answer 1

Step-by-step explanation:

fig 12

exterior angle is equal to sum of its interior opposite angles. so,

X+X+10=130

f2x=130-10

2x=120

X=120/2=60

X = 60 degrees

X+10=60+10=70

required measures 60degrees, 70 degrees

fig 13

2x+3x=150

5x=150

X=150/5=30

2x=2*30=60

3x=3*30=90

required angles are 60° 90°

Answer 2

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