isabelcasillas
27.09.2021 •
Mathematics
Unit 6 Arcs and sectors Band h
Problem solving
The diagram represents the design for part of the hallway of a hotel.
The hallway is in the shape of a quarter circle.
An architect wants the shaded region to be specially made.
a Calculate the perimeter of the shaded region.
b Calculate the area of the shaded region.
-14 m
a 5 kn
(2) The diagram represents a framework for a greenhouse.
The cross-section of the framework is a quarter-circle of radius 4 metres.
The length of the greenhouse is 8 metres.
Solved
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Ответ:
86,000 / 100 = 860
Then,
860 x 7 = 6020.
Hope I've helped.