Formative 11.1 AMI review

Formative 11.1 AMI review

Fill in the Blank

A right triangle has a height of 7 meters and a base of 4 meters. What is the area of  the triangle?

___ $$meters^2$$  

​b = 7

h =4

​

(7)(4)=28

28 divided by 2 = 14

​

Area = 14 sq. meters​

Fill in the Blank

Find the area of the parallelogram below.

___ $$units^2$$  

​Formula

A = (b)(h)

​

We only divide by 2 for triangles! ​

​b = 7

h = 4

​

(7)(4) = 28

​

Area = 28 sq. units. ​

Fill in the Blank

Fill in the missing measurements (if needed) and find the area of the polygons below.

___ $$meters^2$$  

​The total height for the shape is 5 M.

I am given a portion of that high as 2.5.

That leaves the remaining missing height to be 2.5. ​

​The total lengh for the shape is 9M .

I am given a portion of that lengh as 2.5M.

That leaves the remaining missing length to be 6.5 M.​

​The total height for the shape is 5 M.

I am given a portion of that high as 2.5.

That leaves the remaining missing height to be 2.5. ​

​The total lengh for the shape is 9M .

I am given a portion of that lengh as 2.5M.

That leave the remaining missing length to be 6.5 M.​

​6.5

​2.5

​The verticle triangle has a base of 2.5 and a hight of 5.

Area = (2.5)(5)

A = ​12.5

​

The horizontal triangle has a base of 6.5 and a height of 2.5

Area = (6.5)(2.5)

Area = 16.25​

​

Total Area = 12.5 + 16.25

​

Final answer = ​28.75 sq. M.

​

Fill in the Blank

Find the area of the composite figure. Don't forget to fill in missing dimensions as needed.

___ $$ft^2$$  

​We are missing the base and the height of the triangle. We must find these dimensions to calculate the area.

​

​The horizontal dotted line and the 5 ft piece must = 11 ft. together.

11 ft - 5 ft = 6ft as my missing triangle base.

​

The verticle dotted line (8ft) and the height of our triangle must = 12 ft together. 12 - 8 = 4ft as my missing triangle height.

​The rectangle on the right has a base of 7 and a height of 12.

Area = (b)(h)

Area = (7)(12 = 84 sq ft​

​The rectangle in the middle has a base of 11 and a height of 8.

Area = (b)(h)

Area = (11)(8) = 88 sq. ft​

​The triangle has a base of 6 and a height of 4.

Area = (b)(h) divided by 2.

Area = (6)(4) divided by 2 = 12 sq ft.

​

​Total Area = 12+88+84

Total Area = 184 sq. feet​