Answer:
456 
Step-by-step explanation:
Find the height of the trapezoid first (QR):
= 12
QR = 12
Area:
× h = 
× 12
= 456
It is I=PRT. So you would first make the "20%" into a decimal. After you turned the 20% into a decimal, you would multiply the the rest of the numbers (200 and 3) with the decimal you got. It should look like this: 200× 0.20 × 3= answer
Surface area is the sum of area of all surfaces.
In the given diagram , we have two identical triangles , with height = 20 cm and base = 25 cm. Area of triangle = (1/2)*base * height.
So for the given triangle , area = 2*(1/2)*20*25 = 500 cm square .
We have a bottom rectangle whose area is 25*40 = 1000 cm square. A sideby rectangle, whose area is 35*40= 1400 cm square and a backwards rectangle, whose area is 20*40 = 800 cm square.
So the surface area = 500+1000+1400+800 =3700 cm square.
Answer:
:) good day mate
Step-by-step explanation:
:) indeed
