4. The wheel of a bicycle has a 26-inch diameter. Each time the wheel turns a complete revolution, the bicycle moves a distance equal to the circumference of the wheel. How
far has a rider traveled when the wheel has gone around 1,000 times?

2073.6 meters is distance traveled when the wheel has gone around 1,000 times.

Step-by-step explanation:

Given:
Diameter = 26 inch (26*2.54=66.04 cm)
Radius = D/2 = 66.04/2=33.02
To find:
Circumference of the wheel = 2r

                                              =2*3.14*33.02
                                                = 207.36cm (approx)
Distance traveled when the wheel has gone around 1,000 times=207.36*1,000
        = 207360cm (approx)

Distance in meters = 207360/1000 =2073.6

6 equilateral triangles

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)