Jika luas Juring A0B pada gambar di samping adalah 77 cm? Tentukanlah : a. Luas Juring AOC b. Panjang busur AB c. Panjang busur AC d. Luas lingkaran

**Answer and explanation; **
An ecosystem is said to be balanced when gases are in their correct proportions, when There is enough preys for the amount of predators and generally there should be fewer large organisms than there are small ones.
In other words an Ecosystem is balanced when the natural animals and plants together with non livings things are in harmony; meaning the abiotic and biotic factors in the ecosystem are in harmony.
All species are important and help keep the ecosystem balanced.

Answered by jamuuj | 2024-06-11

An ecosystem has been said to be balanced when the gases are in their correct proportions, when there has enough preys for the amount of **predators **and generally there should be fewer large organisms than there are small ones.
What is ecosystem?
An ecosystem have each and every organism and the relation between physical environment by which they interact. The function of the ecosystem has to satisfy the need of the **humans **by supplying them services and goods from nature.
Ecosystem has the branch of the science which deals with the study of relationship between living organisms and the natural phenomena. Ecosystem has the system in which both living as well as nonliving organisms are present in a particular location.
There are various types of **ecosystem **such as **Grassland ecosystem, **Tundra ecosystem, Desert ecosystem, Forest ecosystem.The function of the ecosystem has to satisfy the need of the **humans **by supplying them services and goods from nature.
Therefore, An ecosystem has been said to be balanced when the gases are in their correct proportions, when there has enough preys for the amount of **predators **and generally there should be fewer large organisms than there are small ones.
Learn more about **ecosystem **on:
https://brainly.com/question/13979184
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Answered by shalvivt | 2024-06-16

An ecosystem is in balance when it exhibits high biodiversity, stable food webs, balanced predator-prey ratios, effective nutrient cycling, and strong resistance and resilience to disturbances. The quality of water and atmospheric gases also contributes to its overall health. Monitoring these factors helps determine the equilibrium state of the ecosystem.
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Answered by shalvivt | 2024-09-26

Oke! Mari kita asumsikan data berdasarkan soal yang kamu sampaikan sebelumnya.---✅ Diketahui:Luas juring AOB = 77 cm²Sudut pusat ∠AOB = 90°(Artinya juring AOB adalah 1/4 dari lingkaran)--- Ditanya:a. Luas juring AOCb. Panjang busur ABc. Panjang busur ACd. Luas seluruh lingkaran---✅ Jawaban:a. Luas Juring AOCMisalkan sudut pusat ∠AOC = 180°Juring 180° berarti 1/2 lingkaran.Kalau 90° = 77 cm² → 180° = 2 × 77 = 154 cm²✅ Jawaban: Luas juring AOC = 154 cm²---b. Panjang Busur ABGunakan rumus panjang busur:\text{Panjang busur} = \frac{\theta}{360^\circ} \times 2\pi rKita tahu juring 90° luasnya 77 cm².Gunakan rumus luas juring untuk mencari r:\text{Luas juring} = \frac{\theta}{360^\circ} \times \pi r^277 = \frac{90}{360} \times \pi r^2 \Rightarrow 77 = \frac{1}{4} \pi r^2 \pi r^2 = 308 \Rightarrow r^2 = \frac{308}{\pi} \approx \frac{308}{3.14} \approx 98.09\Rightarrow r \approx \sqrt{98.09} \approx 9.9 \text{ cm}Kini kita hitung panjang busur AB (sudut 90°):\text{Panjang busur AB} = \frac{90}{360} \times 2\pi r = \frac{1}{4} \times 2\pi \times 9.9= \frac{1}{4} \times 62.2 \approx 15.55 \text{ cm}✅ Jawaban: Panjang busur AB ≈ 15.55 cm---c. Panjang Busur ACJika sudut ∠AOC = 180°, maka:\text{Panjang busur AC} = \frac{180}{360} \times 2\pi r = \frac{1}{2} \times 2\pi \times 9.9 = \pi \times 9.9 \approx 31.06 \text{ cm}✅ Jawaban: Panjang busur AC ≈ 31.06 cm---d. Luas LingkaranL = \pi r^2 = \pi \times 9.9^2 \approx 3.14 \times 98.01 \approx 307.75 \text{ cm}^2✅ Jawaban: Luas lingkaran ≈ 307.75 cm²---Kalau kamu punya gambar asli atau soal lain, silakan kirim — nanti aku bantu lagi dengan data yang lebih akurat.

Answered by epantatt01 | 2025-07-18