May 7th, 2017, 02:10 AM  #1 
Newbie Joined: May 2017 From: Pakistan Posts: 7 Thanks: 0  Solve the Triangles
Solve below step by step 1) In ∆ABC, if A+B+C = 180°, show that tanA + tanB + tanC = tanA . tanB . tanC 2) An arc subtends an angle of 70° at the center of a circle and its length is 132 mm. Find the radius of the circle. 3) Find radius of circle when the sides of triangles are all equal. 4) How far a boy on bicycle travel in 5 revolution if the diameter of the wheels of his bicycle each equal to 50cm? 5) A belt 24.75meter long passes around a 1.5cm diameter pulley. As the belt make two complete revolution in a minute, how many radians does the wheel turn in one second? Last edited by skipjack; May 7th, 2017 at 09:34 AM. 
May 7th, 2017, 03:07 AM  #2 
Math Team Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 894 
Do you just want someone to do your homework for you? How about trying to do these yourself and posting your attempts. That way we will have an idea what you do understand about these and what hints will help you.


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a belt 24.75 meters long passes around a 1.5 cm,a belt is 24.75 meter long,A Belt 24.75 metres long Passes Around a 1.5cm diameter pulley. as the belt makes two complete revolutions in a minute how many radian does the wheel turn in one second?
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