Answer:

Step-by-step explanation:
Seperate it into two pieces;
Piece 1, base of 2, height of 9
Piece 2, base of 8, height of 5.
Area of Piece 1:
A = bh
A = 2 (9) = 18
Area of Piece 2:
A = bh
A = 8 (5) = 40
Add the areas of both pieces:
18 + 40 = 58 m2
the distance between the 2 points is 10
if we look on one side, we already have one measurement. 4 cm. ok, that's the measurement on that side. look to the left now. that other side is also the same length, so we take that number and multiply it be 2 to get

Wait! we're not done yet. look at the top. do you see the 3? well that's the width for the top of the rectangle. the bottom must be the same to right? so we get

add both equations and you get

The answer is 14cm! Don't forget to label. ;)
Answer:

Step-by-step explanation:
The radius of the circle is 7 cm.
The two legs of the triangles are 7cm as well.
Area of a trinagle is ( base × height )/2.

Multiply the value by 2 since there are two triangles.

Calculate the area of the circle.

The radius is given.

Take
as 


Subtract the area of the two triangles from the area of the whole circle.

The area of the shaded part is 105 cm². The total area of the shape is 154cm².

Answer:
#8: distance is 3 units
#9: distance is 1 unit
Step-by-step explanation:
for #8 the x values are the same and there's a 3 unit difference between the y value
for #9 the y values are the same and there's a 1 unit difference between the x values
hope this helps chu :3