Question

Find L DCB . The arc is a semicircle.

Pls help its urgent

Answer 1

Step-by-step explanation:

LD=? Let =x

LB=40°

LC=? Let =x

LA=10°

Sum of quadrilateral LA+LB+LC+LD=360°

10°+40°+x+x=360°

50°+2x=360°

2x=360-50

2x=310

X=310÷2

X= 155 Ans

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