gabbycasey102
06.04.2021 •
Mathematics
4. The floor plan of an office is drawn to a scale of 1 : 20.
(a) The length of the office on the plan is 96 cm.
Find the actual length, in metres, of the office.
(b) The area of the pantry is 4.8 m².
Calculate the area, in cm², of the pantry on the plan.
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Ответ:
The length of the unknown leg=8yd
Step-by-step explanation:
Hypotenuse^2=opposite^2-adjacent^2
Hyp^2=opp^2+adj^2
Hyp=√87yd
Opp=√23yd
Adj=?
Adj^2=Hyp^2-opp^2
=(√87)^2-(√23)^2
=87-23
=64
Adj^2=64
Adj=√64
=8yd