Answer:
it increased 50%
Step-by-step explanation:
5 / 2.5 = 2
100 / 2 = 50%
Answer:
30° = m∠GFH
Step-by-step explanation:
Since ∠EFH and ∠GFH are complementary, the sum of their measures i 90.
Let x = m∠GFH
2x = m∠EFH
m∠GFH + m∠EFH = 90
x + 2x = 90
3x = 90
x = 30° = m∠GFH
Kate needs to swim 40 laps to come complete 66 laps
Step-by-step explanation:
<u>Using Pythagorus theorem</u> :
(A)
![PR = \sqrt{ {PQ}^{2} + {QR}^{2} }](https://tex.z-dn.net/?f=PR%20%3D%20%20%5Csqrt%7B%20%7BPQ%7D%5E%7B2%7D%20%20%2B%20%20%7BQR%7D%5E%7B2%7D%20%7D%20)
![PR = \sqrt{196 + 81} = \sqrt{277} = 16.64 \: cm](https://tex.z-dn.net/?f=PR%20%3D%20%20%20%5Csqrt%7B196%20%2B%2081%7D%20%20%3D%20%20%5Csqrt%7B277%7D%20%20%3D%2016.64%20%5C%3A%20cm)
(B)
![QR = \sqrt{ {PQ}^{2} + {PR}^{2} } = \sqrt{196 +324 } = 22.8 \: cm](https://tex.z-dn.net/?f=%20QR%20%20%3D%20%20%20%5Csqrt%7B%20%7BPQ%7D%5E%7B2%7D%20%20%2B%20%20%7BPR%7D%5E%7B2%7D%20%7D%20%20%3D%20%20%5Csqrt%7B196%20%2B324%20%7D%20%20%3D%2022.8%20%5C%3A%20cm)
A - Radius to Area
π r² is the formula to find the area in a circle