# Polar curves/Area of rectangle

• trew

## The Attempt at a Solution

Part C is confusing me.

I got the height PQ to be 16/3root6

But I'm lost as to how to find the length SP. The mark scheme has the answer as 8, or (SP/2 = 4 therefore SP = 8) but I still can't figure it out, maybe it's 'cause I've been doing questions all day.

Can someone shed some light on this for me please.

#### Attachments

• w4peKxQ.png
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Try ##\theta=0##

trew
Try ##\theta=0##
<Content edited by mentor>
Thank you

Last edited by a moderator:

## Homework Statement

View attachment 225862

## The Attempt at a Solution

Part C is confusing me.

I got the height PQ to be 16/3root6

But I'm lost as to how to find the length SP. The mark scheme has the answer as 8, or (SP/2 = 4 therefore SP = 8) but I still can't figure it out, maybe it's 'cause I've been doing questions all day.

Can someone shed some light on this for me please.

Part (c) needs calculus, so should certainly not appear in a "pre-calculus" forum.

Part (c) needs calculus, so should certainly not appear in a "pre-calculus" forum.