the picture goes with the first questions

find the circumference of the circle. use 3.14 for r. round to the nearest unit.

53 cm
227 cm
20 cm
27 cm

2. a quilt design uses parallelogram shapes pieces that have a base measure of 4 inches hight of 6 inches if 5 inches are used in the quilt what s the total area of the parallelogram shaped pieces in the quilt

225 in 2
360 in 2
450 in 2
900 in 2

3. sharon is moving up to the attic and wants to paint one wall blue, the wall is a triangle with a base of 16 feet and a height of 13 feet what is the area of the wall to be painted.

10.4 ft 2
52 ft 2
104 ft 2
208 ft 2

1. Need distance formula to find how long it is then cut it in half to find the radiusd= 10r= 5
Need midpoint formula to find the centermidpoint= (-1, -1)
(h,k) in the equation of a circle is the center, "r" is the radius. When you plug in the center, you have to put the opposite signs...so
equation of a Circle = (x - h)^2 + (y - k)^2 = r^2 = (x + 1)^2 + (y + 1)^2= 25

2. A= pi(r^2)
200.96= 3.14(r^2)
64 = r^2
r = 8
Then to find the circumference, C= 2(pi)(r) = 2 (3.14) (8) = 50.24

For 3 and 4, is there a diagram?

A quilt design uses parallelogram-shaped pieces that have a base measure of 4 inches and a height of 6 inches. If 15 pieces are used in the quilt, what is the total area of the parallelogram-shaped pieces in the quilt?

1.225 in.

2.360 in.

3.(450 in.)

4.900 in.

more detail

step-by-step explanation: