a. 40 sq feet
b. 45 sq feet
c. 23 sq feet
d. 46 sq feet
2006-10-07 03:27:24 · 11 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
area=(1/2)(b1+b2)*h
=(1/2)*18*5=45 sft
2006-10-07 03:34:58 · answer #1 · answered by raj 7 · 0⤊ 0⤋
Area of trapezoid = ½ (sum of parallel bases) à height
= ½ (10 + 8) à 5
= 45 sq feet
So answer is b
2006-10-07 03:36:19 · answer #2 · answered by Lance 2 · 0⤊ 0⤋
It's b. [(10+8)/2]*5=9*5=45!
2006-10-07 03:32:34 · answer #3 · answered by Nadia 1 · 0⤊ 0⤋
Trapezpid Formula
A = 1/2h(b₁+ b₂)
A = 1/2(5)(10 + 8)
A = 1/2(5)(18)
A = 1/2(90)
A = 45 Square feet
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The answer is b (45 Sq feet)
2006-10-07 04:23:35 · answer #4 · answered by SAMUEL D 7 · 0⤊ 0⤋
A=h(b1+b2)/2=5(10+8)/2=5*18/2=45
correct answer is b. 45
2006-10-10 15:12:54 · answer #5 · answered by yupchagee 7 · 0⤊ 0⤋
Area = (h(a + c))/2
Area = (5(10 + 8))/2
Area = (5(18))/2
Area = 5(9)
Area = 45 ft^2
2006-10-07 04:19:14 · answer #6 · answered by Sherman81 6 · 0⤊ 0⤋
That'd take a whole HEAP o' cipherin'!
2006-10-07 05:10:01 · answer #7 · answered by B0FF0 2 · 0⤊ 0⤋
completely out of my depth
2006-10-07 03:28:53 · answer #8 · answered by sleepwalker69 6 · 0⤊ 0⤋
Your teacher would know
2006-10-07 03:29:19 · answer #9 · answered by Anonymous · 0⤊ 0⤋
b
2006-10-07 03:29:45 · answer #10 · answered by s t 2 · 0⤊ 0⤋