Diana has available 120 yards of fencing and wishes to enclose a rectangular area.
2 answers:
Answer:
a) Area = 60W - W²
b) For maximum area, W = 30 yards
c) Maximum area = 900 yard²
Step-by-step explanation:
Diana has available 120 yards of fencing and wishes to enclose a rectangular area.
Let L be the length and W be the width.
Perimeter of rectangle = 2 ( L + W) = 120
L + W = 60
L = 60 - W
a) Area, A = Length x Width = (60 - W) x W = 60W - W²
b) For maximum area we have
For maximum area, W = 30 yards
c) Area = 60W - W² = 60 x 30 - 30² = 900 yard²
Maximum area = 900 yard²
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Answer:
Step-by-step explanation:
To copy an angle we follow the following steps,
1). Draw a working line with the help of a straightedge.
2). Now we put a point S as the vertex of the angle.
3). Construct an arc with a radius 'r' (any length ) from vertex S which intersects the working line say at V.
4). With the same radius we draw an arc from point E which intersects the line ED and EF at G and H respectively.
5). Mark an arc from point G which intersects line EF at I.
6). Measure the distance between points G and I with compass and mark an arc from point V which intersects the previous arc say at U.
7). Now join the points S and U.
Hence we copy any angle.
