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Mathematics 19 Online
KristyStudyz:

What is the area of this trapezoid? Image: https://prnt.sc/milyw1 Please help QwQ

jhonyy9:

Kristy are you here ? i like help you - please come and collaborate

KristyStudyz:

Yeah I am here

jhonyy9:

ok so than you check this trapezoid so you see there two triangle on the right and left part and in the midle part a rectangle yes ? so do you know the necessary formule for the areas of these form ?

jhonyy9:

how you calcule area of a triangle ?

jhonyy9:

A_triangle = base time height divide 2 yes ?

jhonyy9:

us this formula and calcule the area of these triangles

jhonyy9:

courage - i m here to help you

KristyStudyz:

Yes that is the formula

jhonyy9:

can you us it ?

KristyStudyz:

us it?

jhonyy9:

using it

jhonyy9:

the base is 7 and the height is 8 just substitute these inside formula and make the calcule and so will get the areaof a triangle

KristyStudyz:

No, I don't completely know how to use it. this is the last question. The formula

jhonyy9:

the formula is what i ve wrote above for area of triangle

KristyStudyz:

Okay thank you so much!

jhonyy9:

A_triangle = base time height divide 2 calcule this please

KristyStudyz:

So 28?

jhonyy9:

yes very nice but there are two triangles with this area so when you calcule area of this trapezoid so you need multiply thisn 28 by 2 yes ?

KristyStudyz:

Okay so 56?

jhonyy9:

yes sure so but there is in the midle part of this trapezoid a rectangle - yes ?

KristyStudyz:

yeah

jhonyy9:

do you know formula for area of a rectangle ?

KristyStudyz:

No, sorry

jhonyy9:

A_rectangle = length time width yes ?

KristyStudyz:

Okay thank you

KristyStudyz:

so 8 times 3

KristyStudyz:

so 8 times 3

jhonyy9:

so area of this rectangle will be ?

jhonyy9:

yes sure

jhonyy9:

8*3 = ?

KristyStudyz:

24

jhonyy9:

yes this is easy

KristyStudyz:

So it's 56 + 24 = 80? 80 is the area?

jhonyy9:

yes sure 80 is area of trapezoid was difficile ?

jhonyy9:

any questions ?

KristyStudyz:

Nope that was it! Thank you very much :)

jhonyy9:

any time my pleasure good luck bye bye

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