Question

Belinda has made a lampshade with area 0.32 m²,
Its shorter arc has length 1 m, and its slant height is 28 cm.
10
0.32 m2
is 28 cm.
1 m
28 cm
Suppose the material is cut as the difference between two
sectors with common angle 8°, and radii r and R.
a Show that the area of the lampshade is given by
0.280
A= 72r + 0.28) m2
360
6 Use the smaller sector to show that 0
180
C Find r and e.
R
OTT
00
d Hence find the length of the longer arc.
This is the full version of the question.​

Answer 1

Step-by-step explanation:

show that the area of the lampshade is given by

A=0.28/360pei (2r+0.28) m2