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Mathematics 16 Online
OpenStudy (is3535):

What is the area of the figure?

OpenStudy (is3535):

OpenStudy (is3535):

@butterflydreamer

OpenStudy (butterflydreamer):

This one you have to find the area of the triangle + area of the rectangle = ? We know area of a triangle = 1/2 * base * height Area of a rectangle = length * width [note: in this question your base= 3 , width = 4 and height = 6) Sub these into your formula to find the area of the triangle and area of the rectangle :) Once you do that, add them together

OpenStudy (is3535):

72

OpenStudy (butterflydreamer):

hmm. ... not quite :) Let's work out the area of the triangle first. Area of triangle = 1/2 * base * height base = 3 , height = 6 Area of triangle = 1/2 * 3 * 6 = ?

OpenStudy (is3535):

9

OpenStudy (butterflydreamer):

correct :) now let's work out the area of the rectangle Area of rectangle = length * width Area of rectangle = 6 * 4 = ?

OpenStudy (is3535):

24

OpenStudy (triciaal):

option 1 area of a trapezoid = 1/2*(b1 + b2) * h where b1 and b2 are the parallel sides and h the perpendicular distance between option 2 add the area of the rectangle (length * width) to the area of the triangle (1/2*b*h)

OpenStudy (butterflydreamer):

yes! Now , Total area = area of triangle + area of rectangle Area of triangle = 9 Area of rectangle = 24 So, total area = 9 + 24 = ?

OpenStudy (is3535):

33 or -33

OpenStudy (is3535):

33

OpenStudy (butterflydreamer):

it can't be - 33 because area can't be negative... and 9 + 24 = 33 so area = 33 :) you're correct! Good work

OpenStudy (is3535):

ty very much ALL of you girl or boy :)

OpenStudy (butterflydreamer):

anytime!

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