Answer:
Option C is right
Step-by-step explanation:
The figure is a kite divided into 4 right triangles
Top two triangles are congruent and also bottom two triangles
Since top half angle is 45 we have height = base = 45 for top triangle
Top triangle right side area = 1/2 base x height = 1/2 (2.5)(2.5)
Area of two triangles at the top = 2.5 x 2.5 =6.25
Now bottom triangles each has base 6m and height same as 2.5 m
Hence area of two triangles at the bottom=2(1/2 )(6)(2.5)
=15
Together the total area of the figure = 6.25 +15 = 21.25 m^2
Option C is right.
Answer:
4.5
Step-by-step explanation:
For points (x1,y1) and (x2,y2)
the slope is (y2-y1)/(x2-x1)
(3,4) and (6,6), slope is (6-4)/(6-3)=2/3
(4,-4) and (2,-7), slope is (-7-(-4))/(2-4)=(-7+4)/(-2)=-3/-2=3/2
for ax+by=c
slope=-a/b
3x+4y=12
slope=-3/4
