The hardest part is finding the length of the curve at the top. To find arc length, multiply the circumference by the arc angle divided by full angle (360°) in a circle. Or:

x, the arc angle in a semicircle, is 180°.
r, the radius is 7/2 = 3.5.
Now just plug the numbers in and solve for arc length, s.
s = 2π(3.5)(1/2) ≈ 11.00
Now just add up all the sides. 11cm + 10cm + 10cm + 7cm = 38 cm.
Answer:
43
Step-by-step explanation:
i took the unit 2 test review
nvm good luck...
~Sydney~
Which one do you need help with?
Answer:
2c-3y-4=0
Step-by-step explanation:
Standard form is when the answer is equal to zero.