Question

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Answer 1

Answer:

Kindly refer the attachment

Step-by-step explanation:

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Answer 2

SOLUTION :-

=> From the figure ,it can be observed by that the horse can graze a sector of 90° in a circle of 5m radius .

=>Area that can be grazed by horse = Area of sector OACB

$=> \bold{\frac{90 \degree}{360 \degree} \pi \: r {}^{2} } \\=> \bold{ \: \frac{1}{4} \times 3.14 \times (5) {}^{2} } \\ => \bold{ \red{ 19.625m {}^{2} }}$

=>Area that can be grazed by the horse when length of rope is 10m long.

$=> { \bold{\frac{90 \degree}{360 \degree} } \times \pi \times (10) {}^{2}} \\ =>{ \bold{ \frac{1}{4} \times 3.14 \times 100}} \\ =>{ \bold{ \red{78.5m {}^{2} }}}$

=>Increase in grazing area =(78.5-19.625)m².

=>Increase in grazing area = 58.875m².

Therefore,the Increase in grazing area is 58.875m².