74.5k views
1 vote
I need help with this practice problem Having trouble solving it completely

I need help with this practice problem Having trouble solving it completely-example-1
User Spiros
by
8.1k points

2 Answers

3 votes
I agree with the top
User SharonBL
by
8.3k points
5 votes

A=(98\pi)/(15)in^(2)

1) Let's sketch this out to better get it:

2) Note that the area of that sector can be found by making use of the following formula, considering that the unit is radians we can write:


\begin{gathered} A=(1)/(2)\cdot r^2\cdot\alpha \\ A=(1)/(2)\cdot(7)^2\cdot(4\pi)/(15) \\ A=(49)/(2)\cdot(4\pi)/(15) \\ A=(98\pi)/(15)in^(2) \end{gathered}

As it is in radians, we use this formula. If it was in degrees we'd use another formula slightly different.

I need help with this practice problem Having trouble solving it completely-example-1
User Kaleb Pederson
by
8.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories