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Aleonysh [2.5K]
2 years ago
6

The formula for the area of a trapezoid is A=h(b1+b2). Express b1 in terms of A, h, and b2.

Mathematics
2 answers:
lorasvet [3.4K]2 years ago
8 0
In order to find b1 from your formula stated we need to do few calculations
A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2)
I will subtract hb2 from both sides
hb1=A-hb2
now I will divide my new expression by h
b1=(A-hb2)/h
vivado [14]2 years ago
4 0
Solve like a regular algebraic expression A= h(b1+b2) divide both sides by h A/h= b1+b2 subtract b2 from both sides A/h-b2= b1 b1= A/h-b2 hope this helps
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Leni [432]

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inessss [21]

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3 years ago
PLz answer before 11:59 pm
Tpy6a [65]

Answer:

SA = 2520 ft^2

Step-by-step explanation:

a = 21ft

b = 29ft

c = 20ft

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SA = 2A_{B} + (a+b+c)h

A_{B} = s(s﹣a)(s﹣b)(s﹣c)

s = \frac{a + b + c}{2}

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SA= (21 * 30) + (29 * 30) + (20 * 30) +

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SA = 2520 ft^2

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3 years ago
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joja [24]

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