Datrys 10000cm^2=2pi(25)^2+2pi(25)h

$$10000 cm ^ { 2 } = 2 \pi ( 25 ) ^ { 2 } + 2 \pi ( 25 ) h$$

Datrys ar gyfer c

$$\left\{\begin{matrix}c=\frac{\pi \left(h+25\right)}{200m^{2}}\text{, }&m\neq 0\\c\in \mathrm{R}\text{, }&h=-25\text{ and }m=0\end{matrix}\right.$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfrifo 25 i bŵer 2 a chael 625.

$$10000cm^{2}=2\pi \times 625+2\pi \times 25h$$

Lluosi 2 a 625 i gael 1250.

$$10000cm^{2}=1250\pi +2\pi \times 25h$$

Lluosi 2 a 25 i gael 50.

$$10000cm^{2}=1250\pi +50\pi h$$

Mae'r hafaliad yn y ffurf safonol.

$$10000m^{2}c=50\pi h+1250\pi$$

Rhannu’r ddwy ochr â 10000m^{2}.

$$\frac{10000m^{2}c}{10000m^{2}}=\frac{50\pi \left(h+25\right)}{10000m^{2}}$$

Mae rhannu â 10000m^{2} yn dad-wneud lluosi â 10000m^{2}.

$$c=\frac{50\pi \left(h+25\right)}{10000m^{2}}$$

Rhannwch 50\pi \left(25+h\right) â 10000m^{2}.

$$c=\frac{\pi \left(h+25\right)}{200m^{2}}$$

Datrys ar gyfer h

$$h=\frac{200cm^{2}}{\pi }-25$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfrifo 25 i bŵer 2 a chael 625.

$$10000cm^{2}=2\pi \times 625+2\pi \times 25h$$

Lluosi 2 a 625 i gael 1250.

$$10000cm^{2}=1250\pi +2\pi \times 25h$$

Lluosi 2 a 25 i gael 50.

$$10000cm^{2}=1250\pi +50\pi h$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$1250\pi +50\pi h=10000cm^{2}$$

Tynnu 1250\pi o'r ddwy ochr.

$$50\pi h=10000cm^{2}-1250\pi$$

Rhannu’r ddwy ochr â 50\pi .

$$\frac{50\pi h}{50\pi }=\frac{10000cm^{2}-1250\pi }{50\pi }$$

Mae rhannu â 50\pi yn dad-wneud lluosi â 50\pi .

$$h=\frac{10000cm^{2}-1250\pi }{50\pi }$$

Rhannwch 10000cm^{2}-1250\pi â 50\pi .

$$h=\frac{200cm^{2}}{\pi }-25$$