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Rasheedoladex
Answers (2)
The radius is 20cm ÷ 2 =10, equilateral triangle = 60° degree and 60° bisected to 2 = 30° ;tan 30° = × ÷ 10,0.5774 = × ÷ 10, 0.5774 x 10 = ×, × =5.774 or × = 5.77cm
W =1/2 fe ,w =1/2 *15*0.04 ,w=0.3I
