Answer:
63in. 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
1/2x - 2/3 × 15 = 30
1/2x - 10 = 30
1/2x = 30 + 10
1/2x = 40
x = 40 × 2
x = 80
hope this helps
plz mark it bas brainliest!!!!!!!!!
Answer:
I think it is the option c.
please mark me as the brainliest answer and please follow me for more answers to your questions.
Question 1:We have a 45-45-90 right triangle with the hypotenuse being the length from one corner to the opposite corner.
Multiply 30 ft with the square root of 2 and use a calculator to help give you numerical value to get your answer.
![30 \sqrt{2} \approx 42](https://tex.z-dn.net/?f=30%20%5Csqrt%7B2%7D%20%5Capprox%2042)
Your answer is the second choice.
Question 2:The equilateral triangle can be divided into 2 30-60-90 triangles with the longer leg being the altitude. To get half of the side length of the right triangle, divide the altitude by the square root of 3.
![\dfrac{15}{ \sqrt{3} }=\dfrac{15 \sqrt{3} }{3}=5 \sqrt{3}](https://tex.z-dn.net/?f=%5Cdfrac%7B15%7D%7B%20%5Csqrt%7B3%7D%20%7D%3D%5Cdfrac%7B15%20%5Csqrt%7B3%7D%20%7D%7B3%7D%3D5%20%5Csqrt%7B3%7D%20)
The full side length is double of that, which is
![10 \sqrt {3}](https://tex.z-dn.net/?f=10%20%5Csqrt%20%7B3%7D)
.
Multiply that by 3 to get the full perimeter.
![10 \sqrt{3}*3=30 \sqrt{3}](https://tex.z-dn.net/?f=10%20%5Csqrt%7B3%7D%2A3%3D30%20%5Csqrt%7B3%7D)
Your answer is the third choice. Hope this helps! :)