what is the area and perimeter,in square units, of the trapezoid show? i will draw the figure the best i can.... please help me

Question

anonymous · Answer

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anonymous · Answer

the first thing we'll find out is the area. do you know the formula for that?

anonymous · Answer

no

campbell_st · Answer

the area will be 

$$A = \frac{1}{2} \times height \times(a + b)$$

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just substitute the appropriate values 

for the perimeter you need to find the length of x using pythagoras

the triangle has shorter sides 4 and 5... finf the hypotenuse...

anonymous · Answer

would A=50??

anonymous · Answer

a= 1/2x (bx1 + bx2)xh

campbell_st · Answer

yes the area is 50 but don't forget the units are squared...

anonymous · Answer

do you know how to square them?

anonymous · Answer

how?

anonymous · Answer

wait @campbell_st  it doesn't  say square them, so doesn't that mean that they don't need to square them

anonymous · Answer

we are supposed to write it in square units whatever that means

campbell_st · Answer

ok... so if I find the area of anything... how do you differentiate between knowing it units are linear of area... 

so the answer would be 50 units^2

anonymous · Answer

ok is P=6.4??

campbell_st · Answer

@Geometrythebest any question where you are asked to find area you need to have the units squared.

campbell_st · Answer

The hypotenuse is 

about that $$\sqrt{41}$$

anonymous · Answer

right and i approximated to 6.4.....thanks soooooo much for your help

campbell_st · Answer

glad it made sense

anonymous · Answer

oh okay thanks for helping me learn a little too, @campbell_st :)