4) They are congruent by ASA.
5) you can set up a proportion.
original height / shadow = original of tree/ shadow of tree
18/21 = x/14
21x = 252
x = 12
SO the height of the tree is 12
Hope this helps :)
The answer to your question is
Answer:
area of the figure A is 7.5m^2
Step-by-step explanation:
figure A is the combination of rectangle and triangle.
so
area of figure A = area of triangle + area of rectangle
= 1/2 X b X h + L X b
= 1/2 X 1 X (1+1+1) + (1+1+1) X (1+1)
= 0.5 X 1 X 3 + 3 X 2
= 1.5 + 6
= 7.5 m^2
4:3 (simplified) and 16:12 (doubled) both work
Hope this helps!