Answer:
no pictures
Step-by-step explanation:
there is not any picture or i didn't understood the question
C
Opposite / hypotenuse
Sin 45 degrees= 7/x
The ratio given is 4:5 so you do 5divided by 20 which is 4 and multiply 4 and 4 and get 16 so your ratio is 16:20
Answer:

Step-by-step explanation:
We know that:


Remember:
450°=360°+60°
and:

Thus:

Then:

Surface area = Area of rectangle + Areas of triangles.
Area of rectangle = 9cm * 15cm = 135cm2.
Areas of triangles = 6cm * 3cm = 18cm2.
Surface area = 135 + 18 = 153cm2