Answer:
55 l hope am not wrong
Step-by-step explanation:
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Well If you mean't 15 1/2 it is 15.5 This is because a decimal is made for parting using place values like tenths, hundredths, thousandths, etc. The 1/2 part is is .5 because 5 is half of 10.
*I explained a bit more in the comments of my answer.
Answer:
Your answer is C, 10.7cm
Step-by-step explanation:
The two flat sides of the figure are 3 cm, so that part of the perimeter = 6cm
3cm is the radius of what would be a whole circle. We'll calculate the circumference, then divide by 4.
Circumference = (2)(pi)(r)
C = (2)(3.14)(3)
C = 18.84
18.84/4 = 4.71
Add 4.71 to the 6 cm above, = 10.71
Let me know if you have questions about this.
Answer:
169.4 square units.
Step-by-step explanation:
7*4 = 28
28*3 = 84
B*H/2 is the formula for an equilateral triangle.
7*6.1 = 42.7*2 = 85.4
84+85.4 = 169.4
The surface area of your equilateral triangular prism is 169.4 square units.
