Reflection is per the grid markings
D Coordinates are (1,0)
Area = 3 square units
a-b) See below for plotted data
c) Coordinates of D are (1,-3)
d) Its a 4 by 4 square so 16 square units
See below:
a) See below
b) (2,7)
c) See above for drawing
a) Point W which is (9,1)
b) Point X which is (5,7)
c) Point Y which is (4,8)
a) See below
b) A Trapezium
a) See the diagram below
b) (5,4)
c) 17.5cm²
Area: Point A (1,5); B (4,9); C (8,8); D (5,4)
2 Triangles in effect with ABD & BCD.
ABD Area – A to midpoint BD is 3.5. Base is 5 for B to D (co-ordinate for Y axis for B of 9 less co-ordinate for D of 4)
So area of ABD = (1/2 * 3.5 * 5) = 15.75 * 2 = 8.75. * 2 as there are 2 triangles = 17.5
a) (1,5)
b) (1,1) ; (3,1); (4,6)
isosceles ===== 2 equal angles
a) (2,6)
Read horizontal axis always first when reading coordinates. Then Vertical axis
b) See below
c) i) (8,2)
A quarter of the distance from C to A would be from (8,0) to (8,8). Therefore, the difference in spaces is 8 on the vertical axis from C to A. 1/4 of this is 2 so the revised co-ordinates would be (8,2).
c)ii) (5,7)
A is (8,8) and B is (2,6). The difference between the coordinates is (-6,-2). Therefore, you move half of this from the point A which means you move by (-3,-1) from point A. This would give revised co-ordinates of (5,7) for the Silver. You apply addition and subtraction techniques in Coordinates