find the area of a trapezoid with height 12 feet and bases 6 feet and 15 feet.?

Answer 1

A = 1/2 (base1 + base2)(height)
A = 1/2 (6 + 15)(12)
A = (21)(6)
A = 126 sq. feet

Answer 2

Use formula: area of trapezoid.

A = ( h/2 )(a + b)

A = (12/2) (6 + 15)

A = (6) (21)

A = 126 ft.^2

PS You could also do this by finding the area of rectangle and 2 area of triangles and adding them together.

A = 1/2 bh
A = 1/2 (4.5)(12)----------------> You can find base from subtracting the opposite side of the rectangle and dividing by 2. (15-6 = 9/2 = 4.5)
A = 27 (and you have 2 triangles.... so that's 54 ft. ^2 total)

A = lw
A = (6)(12)
A = 72 ft^2

Total of the 3 parts: 72 ft^2 + 54 ft^2 = 126 ft.^2

Answer 3

Area = (1/2) (12) (6 + 15) ft ²
Area = 6 x 21 ft ²
Area = 126 ft ²

Answer 4

(6+15 )x12/2 = 126 square feet

Answer 5

Memorize those formulation or they are going to come back and chew you in each and every math classification you're taking!!! area of Parallelogram (A) is comparable to the backside(b) cases the peak(h): A=bh area of a trapezoid(A) is comparable to one-0.5 (a million/2)cases the sum of the bases(b?+ b?) cases height(h) A= a million/2(b?+ b?)*h Circumference(C) of a circle is comparable to "pi"(?) cases the diameter(d); C= ?*d area(A) of a circle is comparable to "pi" (?) cases the radius(r) squared: A = ? r² Perimeter(P) of a rectangle is the sum of two lengths(L) and a pair of widths(W): P = 2L + 2W area(a) of a triangle is equivalent tyo one-0.5(a million/2) cases the backside(b) cases the peak(h): A= a million/2bh in simple terms stick to those formulation.

Answer 6

126ft^2